138556614 has 24 divisors (see below), whose sum is σ = 322356888. Its totient is φ = 39587520.

The previous prime is 138556597. The next prime is 138556633. The reversal of 138556614 is 416655831.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 235347 + ... + 235934.

It is an arithmetic number, because the mean of its divisors is an integer number (13431537).

Almost surely, 2^138556614 is an apocalyptic number.

138556614 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

138556614 is an abundant number, since it is smaller than the sum of its proper divisors (183800274).

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

138556614 is a wasteful number, since it uses less digits than its factorization.

138556614 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471300 (or 471293 counting only the distinct ones).

The product of its digits is 86400, while the sum is 39.

The square root of 138556614 is about 11771.0073485662. The cubic root of 138556614 is about 517.4587724163.

The spelling of 138556614 in words is "one hundred thirty-eight million, five hundred fifty-six thousand, six hundred fourteen".