138514984 has 8 divisors (see below), whose sum is σ = 259715610. Its totient is φ = 69257488.

The previous prime is 138514979. The next prime is 138515011. The reversal of 138514984 is 489415831.

It can be written as a sum of positive squares in only one way, i.e., 98446084 + 40068900 = 9922^2 + 6330^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 138514984.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8657179 + ... + 8657194.

Almost surely, 2^138514984 is an apocalyptic number.

It is an amenable number.

138514984 is a deficient number, since it is larger than the sum of its proper divisors (121200626).

138514984 is a wasteful number, since it uses less digits than its factorization.

138514984 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17314379 (or 17314375 counting only the distinct ones).

The product of its digits is 138240, while the sum is 43.

The square root of 138514984 is about 11769.2388878806. The cubic root of 138514984 is about 517.4069429009.

The spelling of 138514984 in words is "one hundred thirty-eight million, five hundred fourteen thousand, nine hundred eighty-four".