125597136 has 80 divisors (see below), whose sum is σ = 374583168. Its totient is φ = 35520000.

The previous prime is 125597107. The next prime is 125597149. The reversal of 125597136 is 631795521.

It is a junction number, because it is equal to n+sod(n) for n = 125597094 and 125597103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32086 + ... + 35786.

Almost surely, 2^125597136 is an apocalyptic number.

125597136 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 125597136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (187291584).

125597136 is an abundant number, since it is smaller than the sum of its proper divisors (248986032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125597136 is a wasteful number, since it uses less digits than its factorization.

125597136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3820 (or 3814 counting only the distinct ones).

The product of its digits is 56700, while the sum is 39.

The square root of 125597136 is about 11207.0128044899. The cubic root of 125597136 is about 500.7949168779.

The spelling of 125597136 in words is "one hundred twenty-five million, five hundred ninety-seven thousand, one hundred thirty-six".