138514356 has 18 divisors (see below), whose sum is σ = 350133602. Its totient is φ = 46171440.

The previous prime is 138514307. The next prime is 138514357. The reversal of 138514356 is 653415831.

138514356 is a `hidden beast` number, since 138 + 514 + 3 + 5 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 105267600 + 33246756 = 10260^2 + 5766^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 3847621 = 138514356 / (1 + 3 + 8 + 5 + 1 + 4 + 3 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 138514356.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138514357) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1923775 + ... + 1923846.

Almost surely, 2^138514356 is an apocalyptic number.

It is an amenable number.

138514356 is an abundant number, since it is smaller than the sum of its proper divisors (211619246).

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

138514356 is a wasteful number, since it uses less digits than its factorization.

138514356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3847631 (or 3847626 counting only the distinct ones).

The product of its digits is 43200, while the sum is 36.

The square root of 138514356 is about 11769.2122081302. The cubic root of 138514356 is about 517.4061609589.

The spelling of 138514356 in words is "one hundred thirty-eight million, five hundred fourteen thousand, three hundred fifty-six".