139368746 has 16 divisors (see below), whose sum is σ = 235415808. Its totient is φ = 61305600.

The previous prime is 139368739. The next prime is 139368763. The reversal of 139368746 is 647863931.

It is a happy number.

It is a super-2 number, since 2×139368746² = 38847294723225032, 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 139368746.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101495 + ... + 102858.

It is an arithmetic number, because the mean of its divisors is an integer number (14713488).

Almost surely, 2^139368746 is an apocalyptic number.

139368746 is a deficient number, since it is larger than the sum of its proper divisors (96047062).

139368746 is a wasteful number, since it uses less digits than its factorization.

139368746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204397.

The product of its digits is 653184, while the sum is 47.

The square root of 139368746 is about 11805.4540785181. The cubic root of 139368746 is about 518.4678098255.

The spelling of 139368746 in words is "one hundred thirty-nine million, three hundred sixty-eight thousand, seven hundred forty-six".