125538128 has 40 divisors (see below), whose sum is σ = 250400640. Its totient is φ = 60940800.

The previous prime is 125538067. The next prime is 125538143. The reversal of 125538128 is 821835521.

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, 103928 + ... + 105128.

It is an arithmetic number, because the mean of its divisors is an integer number (6260016).

Almost surely, 2^125538128 is an apocalyptic number.

It is an amenable number.

125538128 is a deficient number, since it is larger than the sum of its proper divisors (124862512).

125538128 is a wasteful number, since it uses less digits than its factorization.

125538128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1395 (or 1389 counting only the distinct ones).

The product of its digits is 19200, while the sum is 35.

The square root of 125538128 is about 11204.3798578949. The cubic root of 125538128 is about 500.7164768315.

The spelling of 125538128 in words is "one hundred twenty-five million, five hundred thirty-eight thousand, one hundred twenty-eight".