139311850 has 24 divisors (see below), whose sum is σ = 265443948. Its totient is φ = 54364800.

The previous prime is 139311841. The next prime is 139311863. The reversal of 139311850 is 58113931.

It can be written as a sum of positive squares in 6 ways, for example, as 567009 + 138744841 = 753^2 + 11779^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31929 + ... + 36028.

Almost surely, 2^139311850 is an apocalyptic number.

139311850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

139311850 is a deficient number, since it is larger than the sum of its proper divisors (126132098).

139311850 is a wasteful number, since it uses less digits than its factorization.

139311850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68010 (or 68005 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 31.

The square root of 139311850 is about 11803.0440988755. The cubic root of 139311850 is about 518.3972469950.

The spelling of 139311850 in words is "one hundred thirty-nine million, three hundred eleven thousand, eight hundred fifty".