138274604 has 12 divisors (see below), whose sum is σ = 260594544. Its totient is φ = 63819024.

The previous prime is 138274603. The next prime is 138274607. The reversal of 138274604 is 406472831.

It is a super-2 number, since 2×138274604² = 38239732222713632, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (138274603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1329512 + ... + 1329615.

It is an arithmetic number, because the mean of its divisors is an integer number (21716212).

Almost surely, 2^138274604 is an apocalyptic number.

It is an amenable number.

138274604 is a deficient number, since it is larger than the sum of its proper divisors (122319940).

138274604 is a wasteful number, since it uses less digits than its factorization.

138274604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2659144 (or 2659142 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 138274604 is about 11759.0222382645. The cubic root of 138274604 is about 517.1074655604.

The spelling of 138274604 in words is "one hundred thirty-eight million, two hundred seventy-four thousand, six hundred four".