139371872 has 12 divisors (see below), whose sum is σ = 274388436. Its totient is φ = 69685920.

The previous prime is 139371863. The next prime is 139371893. The reversal of 139371872 is 278173931.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2177654 + ... + 2177717.

It is an arithmetic number, because the mean of its divisors is an integer number (22865703).

Almost surely, 2^139371872 is an apocalyptic number.

It is an amenable number.

139371872 is a deficient number, since it is larger than the sum of its proper divisors (135016564).

139371872 is an equidigital number, since it uses as much as digits as its factorization.

139371872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4355381 (or 4355373 counting only the distinct ones).

The product of its digits is 63504, while the sum is 41.

The square root of 139371872 is about 11805.5864742079. The cubic root of 139371872 is about 518.4716861567.

The spelling of 139371872 in words is "one hundred thirty-nine million, three hundred seventy-one thousand, eight hundred seventy-two".