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134145953 = 809165817
BaseRepresentation
bin1111111111011…
…10011110100001
3100100102022122122
413333232132201
5233320132303
621151114025
73216136034
oct777563641
9310368578
10134145953
11697a3927
1238b12915
1321a3a906
1413b5d01b
15bb9be38
hex7fee7a1

134145953 has 4 divisors (see below), whose sum is σ = 134312580. Its totient is φ = 133979328.

The previous prime is 134145941. The next prime is 134145961. The reversal of 134145953 is 359541431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 359541431 = 1392586629.

It can be written as a sum of positive squares in 2 ways, for example, as 122257249 + 11888704 = 11057^2 + 3448^2 .

It is a cyclic number.

It is not a de Polignac number, because 134145953 - 24 = 134145937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (134145983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82100 + ... + 83717.

It is an arithmetic number, because the mean of its divisors is an integer number (33578145).

Almost surely, 2134145953 is an apocalyptic number.

It is an amenable number.

134145953 is a deficient number, since it is larger than the sum of its proper divisors (166627).

134145953 is an equidigital number, since it uses as much as digits as its factorization.

134145953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166626.

The product of its digits is 32400, while the sum is 35.

The square root of 134145953 is about 11582.1393965018. The cubic root of 134145953 is about 511.9087170943.

The spelling of 134145953 in words is "one hundred thirty-four million, one hundred forty-five thousand, nine hundred fifty-three".

Divisors: 1 809 165817 134145953