138588762 has 16 divisors (see below), whose sum is σ = 298499040. Its totient is φ = 42642672.

The previous prime is 138588757. The next prime is 138588803. The reversal of 138588762 is 267885831.

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 7 ways as a sum of consecutive naturals, for example, 888312 + ... + 888467.

It is an arithmetic number, because the mean of its divisors is an integer number (18656190).

Almost surely, 2^138588762 is an apocalyptic number.

138588762 is an abundant number, since it is smaller than the sum of its proper divisors (159910278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

138588762 is a wasteful number, since it uses less digits than its factorization.

138588762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1776797.

The product of its digits is 645120, while the sum is 48.

The square root of 138588762 is about 11772.3728279391. The cubic root of 138588762 is about 517.4987897005.

The spelling of 138588762 in words is "one hundred thirty-eight million, five hundred eighty-eight thousand, seven hundred sixty-two".