139011368 has 32 divisors (see below), whose sum is σ = 272772360. Its totient is φ = 66343680.

The previous prime is 139011359. The next prime is 139011371. The reversal of 139011368 is 863110931.

It can be written as a sum of positive squares in 4 ways, for example, as 127735204 + 11276164 = 11302^2 + 3358^2 .

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, 11258 + ... + 20118.

Almost surely, 2^139011368 is an apocalyptic number.

It is an amenable number.

139011368 is a deficient number, since it is larger than the sum of its proper divisors (133760992).

139011368 is a wasteful number, since it uses less digits than its factorization.

139011368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8957 (or 8953 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 139011368 is about 11790.3082232824. The cubic root of 139011368 is about 518.0242680302.

The spelling of 139011368 in words is "one hundred thirty-nine million, eleven thousand, three hundred sixty-eight".