63138492 has 36 divisors (see below), whose sum is σ = 160631016. Its totient is φ = 20910240.

The previous prime is 63138479. The next prime is 63138497. The reversal of 63138492 is 29483136.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63138497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67 + ... + 11237.

Almost surely, 2^63138492 is an apocalyptic number.

It is an amenable number.

63138492 is an abundant number, since it is smaller than the sum of its proper divisors (97492524).

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

63138492 is a wasteful number, since it uses less digits than its factorization.

63138492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11338 (or 11333 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 63138492 is about 7945.9733198646. The cubic root of 63138492 is about 398.1970775526.

The spelling of 63138492 in words is "sixty-three million, one hundred thirty-eight thousand, four hundred ninety-two".