125572128 has 48 divisors (see below), whose sum is σ = 359595936. Its totient is φ = 38051840.

The previous prime is 125572127. The next prime is 125572129. The reversal of 125572128 is 821275521.

It is an interprime number because it is at equal distance from previous prime (125572127) and next prime (125572129).

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (125572123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58401 + ... + 60512.

It is an arithmetic number, because the mean of its divisors is an integer number (7491582).

Almost surely, 2^125572128 is an apocalyptic number.

It is an amenable number.

125572128 is an abundant number, since it is smaller than the sum of its proper divisors (234023808).

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

125572128 is a wasteful number, since it uses less digits than its factorization.

125572128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118937 (or 118929 counting only the distinct ones).

The product of its digits is 11200, while the sum is 33.

The square root of 125572128 is about 11205.8970189807. The cubic root of 125572128 is about 500.7616764421.

The spelling of 125572128 in words is "one hundred twenty-five million, five hundred seventy-two thousand, one hundred twenty-eight".