139514238 has 20 divisors (see below), whose sum is σ = 312615600. Its totient is φ = 46504692.

The previous prime is 139514209. The next prime is 139514239. The reversal of 139514238 is 832415931.

139514238 is a `hidden beast` number, since 139 + 514 + 2 + 3 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (139514239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 430438 + ... + 430761.

It is an arithmetic number, because the mean of its divisors is an integer number (15630780).

Almost surely, 2^139514238 is an apocalyptic number.

139514238 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

139514238 is an abundant number, since it is smaller than the sum of its proper divisors (173101362).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

139514238 is an equidigital number, since it uses as much as digits as its factorization.

139514238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 861213 (or 861204 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 139514238 is about 11811.6145382416. The cubic root of 139514238 is about 518.6481627548.

The spelling of 139514238 in words is "one hundred thirty-nine million, five hundred fourteen thousand, two hundred thirty-eight".