139892308 has 12 divisors (see below), whose sum is σ = 244902112. Its totient is φ = 69920280.

The previous prime is 139892299. The next prime is 139892323. The reversal of 139892308 is 803298931.

It is a happy number.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10843 + ... + 19933.

Almost surely, 2^139892308 is an apocalyptic number.

It is an amenable number.

139892308 is a deficient number, since it is larger than the sum of its proper divisors (105009804).

139892308 is a wasteful number, since it uses less digits than its factorization.

139892308 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12942 (or 12940 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 139892308 is about 11827.6078731077. The cubic root of 139892308 is about 519.1162355380.

The spelling of 139892308 in words is "one hundred thirty-nine million, eight hundred ninety-two thousand, three hundred eight".