139233320 has 16 divisors (see below), whose sum is σ = 313275060. Its totient is φ = 55693312.

The previous prime is 139233301. The next prime is 139233337. The reversal of 139233320 is 23332931.

It can be written as a sum of positive squares in 2 ways, for example, as 136843204 + 2390116 = 11698^2 + 1546^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 139233320.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1740377 + ... + 1740456.

Almost surely, 2^139233320 is an apocalyptic number.

139233320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139233320 is an abundant number, since it is smaller than the sum of its proper divisors (174041740).

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

139233320 is a wasteful number, since it uses less digits than its factorization.

139233320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3480844 (or 3480840 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 26.

The square root of 139233320 is about 11799.7169457576. The cubic root of 139233320 is about 518.2998219553.

The spelling of 139233320 in words is "one hundred thirty-nine million, two hundred thirty-three thousand, three hundred twenty".