138714964 has 12 divisors (see below), whose sum is σ = 243134388. Its totient is φ = 69248000.

The previous prime is 138714943. The next prime is 138714973. The reversal of 138714964 is 469417831.

It can be written as a sum of positive squares in 2 ways, for example, as 117939600 + 20775364 = 10860^2 + 4558^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 138714964.

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, 24487 + ... + 29614.

It is an arithmetic number, because the mean of its divisors is an integer number (20261199).

Almost surely, 2^138714964 is an apocalyptic number.

It is an amenable number.

138714964 is a deficient number, since it is larger than the sum of its proper divisors (104419424).

138714964 is a wasteful number, since it uses less digits than its factorization.

138714964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54746 (or 54744 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 138714964 is about 11777.7317001195. The cubic root of 138714964 is about 517.6558240018.

The spelling of 138714964 in words is "one hundred thirty-eight million, seven hundred fourteen thousand, nine hundred sixty-four".