138574674 has 24 divisors (see below), whose sum is σ = 343137600. Its totient is φ = 39592728.

The previous prime is 138574669. The next prime is 138574679. The reversal of 138574674 is 476475831.

138574674 is a `hidden beast` number, since 1 + 3 + 8 + 574 + 6 + 74 = 666.

It is an interprime number because it is at equal distance from previous prime (138574669) and next prime (138574679).

It is not an unprimeable number, because it can be changed into a prime (138574679) 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, 549774 + ... + 550025.

It is an arithmetic number, because the mean of its divisors is an integer number (14297400).

Almost surely, 2^138574674 is an apocalyptic number.

138574674 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138574674 is an abundant number, since it is smaller than the sum of its proper divisors (204562926).

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

138574674 is a wasteful number, since it uses less digits than its factorization.

138574674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099814 (or 1099811 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 138574674 is about 11771.7744626713. The cubic root of 138574674 is about 517.4812539593.

The spelling of 138574674 in words is "one hundred thirty-eight million, five hundred seventy-four thousand, six hundred seventy-four".