139473960 has 64 divisors (see below), whose sum is σ = 431930880. Its totient is φ = 35992320.

The previous prime is 139473953. The next prime is 139473973. The reversal of 139473960 is 69374931.

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, 15027 + ... + 22466.

It is an arithmetic number, because the mean of its divisors is an integer number (6748920).

Almost surely, 2^139473960 is an apocalyptic number.

139473960 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139473960 is an abundant number, since it is smaller than the sum of its proper divisors (292456920).

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

139473960 is a wasteful number, since it uses less digits than its factorization.

139473960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37538 (or 37534 counting only the distinct ones).

The product of its (nonzero) digits is 122472, while the sum is 42.

The square root of 139473960 is about 11809.9093984670. The cubic root of 139473960 is about 518.5982464125.

The spelling of 139473960 in words is "one hundred thirty-nine million, four hundred seventy-three thousand, nine hundred sixty".