138233734 has 16 divisors (see below), whose sum is σ = 215170560. Its totient is φ = 66555720.

The previous prime is 138233729. The next prime is 138233737. The reversal of 138233734 is 437332831.

It is a self number, because there is not a number n which added to its sum of digits gives 138233734.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138233737) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5214 + ... + 17425.

It is an arithmetic number, because the mean of its divisors is an integer number (13448160).

Almost surely, 2^138233734 is an apocalyptic number.

138233734 is a deficient number, since it is larger than the sum of its proper divisors (76936826).

138233734 is a wasteful number, since it uses less digits than its factorization.

138233734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22755.

The product of its digits is 36288, while the sum is 34.

The square root of 138233734 is about 11757.2842952784. The cubic root of 138233734 is about 517.0565131703.

The spelling of 138233734 in words is "one hundred thirty-eight million, two hundred thirty-three thousand, seven hundred thirty-four".