138752782 has 32 divisors (see below), whose sum is σ = 251251200. Its totient is φ = 56140128.

The previous prime is 138752773. The next prime is 138752833. The reversal of 138752782 is 287257831.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 94768 + ... + 96220.

It is an arithmetic number, because the mean of its divisors is an integer number (7851600).

Almost surely, 2^138752782 is an apocalyptic number.

138752782 is a deficient number, since it is larger than the sum of its proper divisors (112498418).

138752782 is a wasteful number, since it uses less digits than its factorization.

138752782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1840.

The product of its digits is 188160, while the sum is 43.

The square root of 138752782 is about 11779.3370781212. The cubic root of 138752782 is about 517.7028627365.

The spelling of 138752782 in words is "one hundred thirty-eight million, seven hundred fifty-two thousand, seven hundred eighty-two".