139361964 has 48 divisors (see below), whose sum is σ = 376739328. Its totient is φ = 39270528.

The previous prime is 139361947. The next prime is 139361983. The reversal of 139361964 is 469163931.

It is a hoax number, since the sum of its digits (42) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 5232 + ... + 17495.

It is an arithmetic number, because the mean of its divisors is an integer number (7848736).

Almost surely, 2^139361964 is an apocalyptic number.

139361964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

139361964 is an abundant number, since it is smaller than the sum of its proper divisors (237377364).

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

139361964 is a wasteful number, since it uses less digits than its factorization.

139361964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22814 (or 22812 counting only the distinct ones).

The product of its digits is 104976, while the sum is 42.

The square root of 139361964 is about 11805.1668349075. The cubic root of 139361964 is about 518.4593997484.

The spelling of 139361964 in words is "one hundred thirty-nine million, three hundred sixty-one thousand, nine hundred sixty-four".