139811366 has 8 divisors (see below), whose sum is σ = 222053400. Its totient is φ = 65793568.

The previous prime is 139811311. The next prime is 139811387. The reversal of 139811366 is 663118931.

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

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, 2056016 + ... + 2056083.

It is an arithmetic number, because the mean of its divisors is an integer number (27756675).

Almost surely, 2^139811366 is an apocalyptic number.

139811366 is a deficient number, since it is larger than the sum of its proper divisors (82242034).

139811366 is a wasteful number, since it uses less digits than its factorization.

139811366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4112118.

The product of its digits is 23328, while the sum is 38.

The square root of 139811366 is about 11824.1856379203. The cubic root of 139811366 is about 519.0160956197.

The spelling of 139811366 in words is "one hundred thirty-nine million, eight hundred eleven thousand, three hundred sixty-six".