138750884 has 6 divisors (see below), whose sum is σ = 242814054. Its totient is φ = 69375440.

The previous prime is 138750869. The next prime is 138750893. The reversal of 138750884 is 488057831.

It can be written as a sum of positive squares in only one way, i.e., 137405284 + 1345600 = 11722^2 + 1160^2 .

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, 17343857 + ... + 17343864.

It is an arithmetic number, because the mean of its divisors is an integer number (40469009).

Almost surely, 2^138750884 is an apocalyptic number.

It is an amenable number.

138750884 is a deficient number, since it is larger than the sum of its proper divisors (104063170).

138750884 is a wasteful number, since it uses less digits than its factorization.

138750884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34687725 (or 34687723 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 44.

The square root of 138750884 is about 11779.2565130402. The cubic root of 138750884 is about 517.7005021724.

The spelling of 138750884 in words is "one hundred thirty-eight million, seven hundred fifty thousand, eight hundred eighty-four".