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131446137 = 3343312763
BaseRepresentation
bin1111101010110…
…11010101111001
3100011100011012110
413311123111321
5232122234022
621013202533
73154162614
oct765332571
9304304173
10131446137
116821a479
1238030449
1321303aa4
141365917b
15b81700c
hex7d5b579

131446137 has 8 divisors (see below), whose sum is σ = 175326304. Its totient is φ = 87598368.

The previous prime is 131446129. The next prime is 131446153. The reversal of 131446137 is 731644131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 131446137 - 23 = 131446129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131446177) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3918 + ... + 16680.

It is an arithmetic number, because the mean of its divisors is an integer number (21915788).

Almost surely, 2131446137 is an apocalyptic number.

It is an amenable number.

131446137 is a deficient number, since it is larger than the sum of its proper divisors (43880167).

131446137 is a wasteful number, since it uses less digits than its factorization.

131446137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16199.

The product of its digits is 6048, while the sum is 30.

The square root of 131446137 is about 11464.9961622322. The cubic root of 131446137 is about 508.4511989938.

It can be divided in two parts, 13 and 1446137, that multiplied together give a palindrome (18799781).

The spelling of 131446137 in words is "one hundred thirty-one million, four hundred forty-six thousand, one hundred thirty-seven".

Divisors: 1 3 3433 10299 12763 38289 43815379 131446137