125456172 has 24 divisors (see below), whose sum is σ = 293178816. Its totient is φ = 41754768.

The previous prime is 125456171. The next prime is 125456173. The reversal of 125456172 is 271654521.

It is an interprime number because it is at equal distance from previous prime (125456171) and next prime (125456173).

It is not an unprimeable number, because it can be changed into a prime (125456171) 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, 543 + ... + 15849.

It is an arithmetic number, because the mean of its divisors is an integer number (12215784).

Almost surely, 2^125456172 is an apocalyptic number.

125456172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

125456172 is an abundant number, since it is smaller than the sum of its proper divisors (167722644).

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

125456172 is a wasteful number, since it uses less digits than its factorization.

125456172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15997 (or 15995 counting only the distinct ones).

The product of its digits is 16800, while the sum is 33.

The square root of 125456172 is about 11200.7219410179. The cubic root of 125456172 is about 500.6074909439.

The spelling of 125456172 in words is "one hundred twenty-five million, four hundred fifty-six thousand, one hundred seventy-two".