138863104 has 20 divisors (see below), whose sum is σ = 277456014. Its totient is φ = 69431296.

The previous prime is 138863093. The next prime is 138863111. The reversal of 138863104 is 401368831.

It can be written as a sum of positive squares in only one way, i.e., 138297600 + 565504 = 11760^2 + 752^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 138863104.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 135097 + ... + 136120.

Almost surely, 2^138863104 is an apocalyptic number.

It is an amenable number.

138863104 is a deficient number, since it is larger than the sum of its proper divisors (138592910).

138863104 is an frugal number, since it uses more digits than its factorization.

138863104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271235 (or 271219 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 34.

The square root of 138863104 is about 11784.0190088102. The cubic root of 138863104 is about 517.8400344842.

The spelling of 138863104 in words is "one hundred thirty-eight million, eight hundred sixty-three thousand, one hundred four".