138926674 has 8 divisors (see below), whose sum is σ = 212322060. Its totient is φ = 68152656.

The previous prime is 138926663. The next prime is 138926677. The reversal of 138926674 is 476629831.

It can be written as a sum of positive squares in 2 ways, for example, as 135559449 + 3367225 = 11643^2 + 1835^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (138926677) 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 3 ways as a sum of consecutive naturals, for example, 655209 + ... + 655420.

Almost surely, 2^138926674 is an apocalyptic number.

138926674 is a deficient number, since it is larger than the sum of its proper divisors (73395386).

138926674 is a wasteful number, since it uses less digits than its factorization.

138926674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310684.

The product of its digits is 435456, while the sum is 46.

The square root of 138926674 is about 11786.7159972573. The cubic root of 138926674 is about 517.9190429177.

The spelling of 138926674 in words is "one hundred thirty-eight million, nine hundred twenty-six thousand, six hundred seventy-four".