138577234 has 12 divisors (see below), whose sum is σ = 220813434. Its totient is φ = 65212544.

The previous prime is 138577213. The next prime is 138577237. The reversal of 138577234 is 432775831.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 115025625 + 23551609 = 10725^2 + 4853^2 .

It is not an unprimeable number, because it can be changed into a prime (138577237) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 119299 + ... + 120454.

Almost surely, 2^138577234 is an apocalyptic number.

138577234 is a deficient number, since it is larger than the sum of its proper divisors (82236200).

138577234 is a wasteful number, since it uses less digits than its factorization.

138577234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239789 (or 239772 counting only the distinct ones).

The product of its digits is 141120, while the sum is 40.

The square root of 138577234 is about 11771.8831968381. The cubic root of 138577234 is about 517.4844405538.

The spelling of 138577234 in words is "one hundred thirty-eight million, five hundred seventy-seven thousand, two hundred thirty-four".