139838368 has 12 divisors (see below), whose sum is σ = 275306850. Its totient is φ = 69919168.

The previous prime is 139838353. The next prime is 139838383. The reversal of 139838368 is 863838931.

It is an interprime number because it is at equal distance from previous prime (139838353) and next prime (139838383).

It can be written as a sum of positive squares in only one way, i.e., 72795024 + 67043344 = 8532^2 + 8188^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2184943 + ... + 2185006.

Almost surely, 2^139838368 is an apocalyptic number.

It is an amenable number.

139838368 is a deficient number, since it is larger than the sum of its proper divisors (135468482).

139838368 is an equidigital number, since it uses as much as digits as its factorization.

139838368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4369959 (or 4369951 counting only the distinct ones).

The product of its digits is 746496, while the sum is 49.

The square root of 139838368 is about 11825.3273950449. The cubic root of 139838368 is about 519.0495062808.

The spelling of 139838368 in words is "one hundred thirty-nine million, eight hundred thirty-eight thousand, three hundred sixty-eight".