138767884 has 12 divisors (see below), whose sum is σ = 242928000. Its totient is φ = 69359888.

The previous prime is 138767879. The next prime is 138767891. The reversal of 138767884 is 488767831.

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 in 3 ways as a sum of consecutive naturals, for example, 15582 + ... + 22810.

It is an arithmetic number, because the mean of its divisors is an integer number (20244000).

Almost surely, 2^138767884 is an apocalyptic number.

It is an amenable number.

138767884 is a deficient number, since it is larger than the sum of its proper divisors (104160116).

138767884 is a wasteful number, since it uses less digits than its factorization.

138767884 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12032 (or 12030 counting only the distinct ones).

The product of its digits is 1806336, while the sum is 52.

The square root of 138767884 is about 11779.9780984516. The cubic root of 138767884 is about 517.7216444980.

The spelling of 138767884 in words is "one hundred thirty-eight million, seven hundred sixty-seven thousand, eight hundred eighty-four".