125177128 has 16 divisors (see below), whose sum is σ = 240166080. Its totient is φ = 61132848.

The previous prime is 125177119. The next prime is 125177161. The reversal of 125177128 is 821771521.

It is a junction number, because it is equal to n+sod(n) for n = 125177093 and 125177102.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181600 + ... + 182287.

It is an arithmetic number, because the mean of its divisors is an integer number (15010380).

Almost surely, 2^125177128 is an apocalyptic number.

It is an amenable number.

125177128 is a deficient number, since it is larger than the sum of its proper divisors (114988952).

125177128 is a wasteful number, since it uses less digits than its factorization.

125177128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 363936 (or 363932 counting only the distinct ones).

The product of its digits is 7840, while the sum is 34.

The square root of 125177128 is about 11188.2584882546. The cubic root of 125177128 is about 500.2360592012.

The spelling of 125177128 in words is "one hundred twenty-five million, one hundred seventy-seven thousand, one hundred twenty-eight".