138614974 has 16 divisors (see below), whose sum is σ = 229726368. Its totient is φ = 62394112.

The previous prime is 138614941. The next prime is 138614989. The reversal of 138614974 is 479416831.

It is a super-2 number, since 2×138614974² = 38428222034041352, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 138614974.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87847 + ... + 89410.

It is an arithmetic number, because the mean of its divisors is an integer number (14357898).

Almost surely, 2^138614974 is an apocalyptic number.

138614974 is a deficient number, since it is larger than the sum of its proper divisors (91111394).

138614974 is a wasteful number, since it uses less digits than its factorization.

138614974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177299.

The product of its digits is 145152, while the sum is 43.

The square root of 138614974 is about 11773.4860597871. The cubic root of 138614974 is about 517.5314133731.

The spelling of 138614974 in words is "one hundred thirty-eight million, six hundred fourteen thousand, nine hundred seventy-four".