139622370 has 32 divisors (see below), whose sum is σ = 335518848. Its totient is φ = 37185408.

The previous prime is 139622363. The next prime is 139622381. The reversal of 139622370 is 73226931.

It is a happy number.

139622370 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25627 + ... + 30593.

It is an arithmetic number, because the mean of its divisors is an integer number (10484964).

Almost surely, 2^139622370 is an apocalyptic number.

139622370 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139622370 is an abundant number, since it is smaller than the sum of its proper divisors (195896478).

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

139622370 is a wasteful number, since it uses less digits than its factorization.

139622370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5914.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 139622370 is about 11816.1910106430. The cubic root of 139622370 is about 518.7821227507.

The spelling of 139622370 in words is "one hundred thirty-nine million, six hundred twenty-two thousand, three hundred seventy".