138654774 has 32 divisors (see below), whose sum is σ = 308551680. Its totient is φ = 46153800.

The previous prime is 138654767. The next prime is 138654793. The reversal of 138654774 is 477456831.

138654774 is a `hidden beast` number, since 1 + 38 + 6 + 547 + 74 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 52219 + ... + 54809.

It is an arithmetic number, because the mean of its divisors is an integer number (9642240).

Almost surely, 2^138654774 is an apocalyptic number.

138654774 is an abundant number, since it is smaller than the sum of its proper divisors (169896906).

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

138654774 is a wasteful number, since it uses less digits than its factorization.

138654774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3593 (or 3587 counting only the distinct ones).

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

The square root of 138654774 is about 11775.1761770260. The cubic root of 138654774 is about 517.5809409207.

The spelling of 138654774 in words is "one hundred thirty-eight million, six hundred fifty-four thousand, seven hundred seventy-four".