125171320 has 32 divisors (see below), whose sum is σ = 284433120. Its totient is φ = 49571200.

The previous prime is 125171317. The next prime is 125171341. The reversal of 125171320 is 23171521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 125171291 and 125171300.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11452 + ... + 19531.

It is an arithmetic number, because the mean of its divisors is an integer number (8888535).

Almost surely, 2^125171320 is an apocalyptic number.

125171320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125171320 is an abundant number, since it is smaller than the sum of its proper divisors (159261800).

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

125171320 is a wasteful number, since it uses less digits than its factorization.

125171320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31095 (or 31091 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 125171320 is about 11187.9989274222. The cubic root of 125171320 is about 500.2283223886.

The spelling of 125171320 in words is "one hundred twenty-five million, one hundred seventy-one thousand, three hundred twenty".