139371040 has 48 divisors (see below), whose sum is σ = 339897600. Its totient is φ = 53948160.

The previous prime is 139370983. The next prime is 139371073. The reversal of 139371040 is 40173931.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9090 + ... + 19009.

It is an arithmetic number, because the mean of its divisors is an integer number (7081200).

Almost surely, 2^139371040 is an apocalyptic number.

139371040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

139371040 is an abundant number, since it is smaller than the sum of its proper divisors (200526560).

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

139371040 is a wasteful number, since it uses less digits than its factorization.

139371040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28145 (or 28137 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 28.

The square root of 139371040 is about 11805.5512366005. The cubic root of 139371040 is about 518.4706544581.

The spelling of 139371040 in words is "one hundred thirty-nine million, three hundred seventy-one thousand, forty".