139179274 has 48 divisors (see below), whose sum is σ = 240330240. Its totient is φ = 60315840.

The previous prime is 139179269. The next prime is 139179281. The reversal of 139179274 is 472971931.

It is a happy number.

It is a super-2 number, since 2×139179274² = 38741740622334152, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 139179274.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 387507 + ... + 387865.

It is an arithmetic number, because the mean of its divisors is an integer number (5006880).

Almost surely, 2^139179274 is an apocalyptic number.

139179274 is a deficient number, since it is larger than the sum of its proper divisors (101150966).

139179274 is a wasteful number, since it uses less digits than its factorization.

139179274 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455 (or 442 counting only the distinct ones).

The product of its digits is 95256, while the sum is 43.

The square root of 139179274 is about 11797.4265837936. The cubic root of 139179274 is about 518.2327507077.

The spelling of 139179274 in words is "one hundred thirty-nine million, one hundred seventy-nine thousand, two hundred seventy-four".