139876379 has 8 divisors (see below), whose sum is σ = 143828160. Its totient is φ = 135950400.

The previous prime is 139876349. The next prime is 139876441. The reversal of 139876379 is 973678931.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 139876379 - 2²⁰ = 138827803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 139876379.

It is not an unprimeable number, because it can be changed into a prime (139876339) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4817 + ... + 17405.

It is an arithmetic number, because the mean of its divisors is an integer number (17978520).

Almost surely, 2^139876379 is an apocalyptic number.

139876379 is a deficient number, since it is larger than the sum of its proper divisors (3951781).

139876379 is a wasteful number, since it uses less digits than its factorization.

139876379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12901.

The product of its digits is 1714608, while the sum is 53.

The square root of 139876379 is about 11826.9344717894. The cubic root of 139876379 is about 519.0965315326.

It can be divided in two parts, 1398 and 76379, that added together give a palindrome (77777).

The spelling of 139876379 in words is "one hundred thirty-nine million, eight hundred seventy-six thousand, three hundred seventy-nine".