138266674 has 24 divisors (see below), whose sum is σ = 256668480. Its totient is φ = 54697968.

The previous prime is 138266671. The next prime is 138266683. The reversal of 138266674 is 476662831.

138266674 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 138266674.

It is not an unprimeable number, because it can be changed into a prime (138266671) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26854 + ... + 31585.

It is an arithmetic number, because the mean of its divisors is an integer number (10694520).

Almost surely, 2^138266674 is an apocalyptic number.

138266674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138266674 is a deficient number, since it is larger than the sum of its proper divisors (118401806).

138266674 is a wasteful number, since it uses less digits than its factorization.

138266674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58474 (or 58461 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The square root of 138266674 is about 11758.6850455312. The cubic root of 138266674 is about 517.0975800608.

The spelling of 138266674 in words is "one hundred thirty-eight million, two hundred sixty-six thousand, six hundred seventy-four".