139818476 has 12 divisors (see below), whose sum is σ = 279637008. Its totient is φ = 59922192.

The previous prime is 139818461. The next prime is 139818479. The reversal of 139818476 is 674818931.

139818476 is an admirable number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 139818476.

It is not an unprimeable number, because it can be changed into a prime (139818479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2496731 + ... + 2496786.

It is an arithmetic number, because the mean of its divisors is an integer number (23303084).

Almost surely, 2^139818476 is an apocalyptic number.

It is an amenable number.

139818476 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

139818476 is a wasteful number, since it uses less digits than its factorization.

139818476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4993528 (or 4993526 counting only the distinct ones).

The product of its digits is 290304, while the sum is 47.

The square root of 139818476 is about 11824.4862890529. The cubic root of 139818476 is about 519.0248935260.

The spelling of 139818476 in words is "one hundred thirty-nine million, eight hundred eighteen thousand, four hundred seventy-six".