138637053 has 24 divisors (see below), whose sum is σ = 217601280. Its totient is φ = 84732480.

The previous prime is 138636997. The next prime is 138637069. The reversal of 138637053 is 350736831.

138637053 is a `hidden beast` number, since 13 + 8 + 637 + 0 + 5 + 3 = 666.

It is not a de Polignac number, because 138637053 - 2²¹ = 136539901 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 138636999 and 138637017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (138637253) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7776 + ... + 18377.

It is an arithmetic number, because the mean of its divisors is an integer number (9066720).

Almost surely, 2^138637053 is an apocalyptic number.

It is an amenable number.

138637053 is a deficient number, since it is larger than the sum of its proper divisors (78964227).

138637053 is a wasteful number, since it uses less digits than its factorization.

138637053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26209 (or 26206 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 138637053 is about 11774.4236801637. The cubic root of 138637053 is about 517.5588898886.

The spelling of 138637053 in words is "one hundred thirty-eight million, six hundred thirty-seven thousand, fifty-three".