139125288 has 32 divisors (see below), whose sum is σ = 349745760. Its totient is φ = 46117440.

The previous prime is 139125271. The next prime is 139125289. The reversal of 139125288 is 882521931.

It is a super-2 number, since 2×139125288² = 38711691522165888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (139125289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11670 + ... + 20357.

It is an arithmetic number, because the mean of its divisors is an integer number (10929555).

Almost surely, 2^139125288 is an apocalyptic number.

It is an amenable number.

139125288 is an abundant number, since it is smaller than the sum of its proper divisors (210620472).

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

139125288 is a wasteful number, since it uses less digits than its factorization.

139125288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32217 (or 32213 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 139125288 is about 11795.1383205115. The cubic root of 139125288 is about 518.1657365837.

The spelling of 139125288 in words is "one hundred thirty-nine million, one hundred twenty-five thousand, two hundred eighty-eight".