138358674 has 12 divisors (see below), whose sum is σ = 299777166. Its totient is φ = 46119552.

The previous prime is 138358657. The next prime is 138358679. The reversal of 138358674 is 476853831.

It can be written as a sum of positive squares in only one way, i.e., 85433049 + 52925625 = 9243^2 + 7275^2 .

It is not an unprimeable number, because it can be changed into a prime (138358679) 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, 3843279 + ... + 3843314.

Almost surely, 2^138358674 is an apocalyptic number.

138358674 is an abundant number, since it is smaller than the sum of its proper divisors (161418492).

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

138358674 is a wasteful number, since it uses less digits than its factorization.

138358674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7686601 (or 7686598 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 138358674 is about 11762.5963970545. The cubic root of 138358674 is about 517.2122435791.

The spelling of 138358674 in words is "one hundred thirty-eight million, three hundred fifty-eight thousand, six hundred seventy-four".