125696172 has 72 divisors (see below), whose sum is σ = 359163840. Its totient is φ = 34020000.

The previous prime is 125696159. The next prime is 125696177. The reversal of 125696172 is 271696521.

It is a self number, because there is not a number n which added to its sum of digits gives 125696172.

It is not an unprimeable number, because it can be changed into a prime (125696177) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5547 + ... + 16797.

Almost surely, 2^125696172 is an apocalyptic number.

125696172 is a gapful number since it is divisible by the number (12) 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 125696172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179581920).

125696172 is an abundant number, since it is smaller than the sum of its proper divisors (233467668).

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

125696172 is a wasteful number, since it uses less digits than its factorization.

125696172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11291 (or 11282 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 125696172 is about 11211.4304172126. The cubic root of 125696172 is about 500.9265114260.

The spelling of 125696172 in words is "one hundred twenty-five million, six hundred ninety-six thousand, one hundred seventy-two".