125568128 has 32 divisors (see below), whose sum is σ = 285893760. Its totient is φ = 53814528.

The previous prime is 125568061. The next prime is 125568133. The reversal of 125568128 is 821865521.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 125568091 and 125568100.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69176 + ... + 70967.

It is an arithmetic number, because the mean of its divisors is an integer number (8934180).

Almost surely, 2^125568128 is an apocalyptic number.

It is an amenable number.

125568128 is an abundant number, since it is smaller than the sum of its proper divisors (160325632).

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

125568128 is an equidigital number, since it uses as much as digits as its factorization.

125568128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140164 (or 140152 counting only the distinct ones).

The product of its digits is 38400, while the sum is 38.

The square root of 125568128 is about 11205.7185401026. The cubic root of 125568128 is about 500.7563592644.

The spelling of 125568128 in words is "one hundred twenty-five million, five hundred sixty-eight thousand, one hundred twenty-eight".