138374313 has 16 divisors (see below), whose sum is σ = 230025216. Its totient is φ = 71882640.

The previous prime is 138374309. The next prime is 138374323. The reversal of 138374313 is 313473831.

It is a happy number.

It is not a de Polignac number, because 138374313 - 2² = 138374309 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (138374323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 299281 + ... + 299742.

It is an arithmetic number, because the mean of its divisors is an integer number (14376576).

Almost surely, 2^138374313 is an apocalyptic number.

It is an amenable number.

138374313 is a deficient number, since it is larger than the sum of its proper divisors (91650903).

138374313 is a wasteful number, since it uses less digits than its factorization.

138374313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 599044.

The product of its digits is 18144, while the sum is 33.

The square root of 138374313 is about 11763.2611549689. The cubic root of 138374313 is about 517.2317300758.

The spelling of 138374313 in words is "one hundred thirty-eight million, three hundred seventy-four thousand, three hundred thirteen".