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132931129 = 1071242347
BaseRepresentation
bin1111110110001…
…01111000111001
3100021010121020011
413323011320321
5233012244004
621105101521
73202616212
oct773057071
9307117204
10132931129
1169044141
12386278a1
1321703996
1413924409
15ba0c004
hex7ec5e39

132931129 has 4 divisors (see below), whose sum is σ = 134173584. Its totient is φ = 131688676.

The previous prime is 132931093. The next prime is 132931133. The reversal of 132931129 is 921139231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 132931129 - 215 = 132898361 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 132931129.

It is not an unprimeable number, because it can be changed into a prime (132931199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621067 + ... + 621280.

It is an arithmetic number, because the mean of its divisors is an integer number (33543396).

Almost surely, 2132931129 is an apocalyptic number.

It is an amenable number.

132931129 is a deficient number, since it is larger than the sum of its proper divisors (1242455).

132931129 is a wasteful number, since it uses less digits than its factorization.

132931129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1242454.

The product of its digits is 2916, while the sum is 31.

The square root of 132931129 is about 11529.5762714854. The cubic root of 132931129 is about 510.3587492519.

The spelling of 132931129 in words is "one hundred thirty-two million, nine hundred thirty-one thousand, one hundred twenty-nine".

Divisors: 1 107 1242347 132931129