138934502 has 12 divisors (see below), whose sum is σ = 242426700. Its totient is φ = 59543316.

The previous prime is 138934501. The next prime is 138934507. The reversal of 138934502 is 205439831.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138934501) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 708752 + ... + 708947.

It is an arithmetic number, because the mean of its divisors is an integer number (20202225).

Almost surely, 2^138934502 is an apocalyptic number.

138934502 is a deficient number, since it is larger than the sum of its proper divisors (103492198).

138934502 is a wasteful number, since it uses less digits than its factorization.

138934502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417715 (or 1417708 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 138934502 is about 11787.0480613256. The cubic root of 138934502 is about 517.9287703372.

The spelling of 138934502 in words is "one hundred thirty-eight million, nine hundred thirty-four thousand, five hundred two".