63138477 has 8 divisors (see below), whose sum is σ = 85564960. Its totient is φ = 41402160.

The previous prime is 63138457. The next prime is 63138479. The reversal of 63138477 is 77483136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 63138477 - 2²³ = 54749869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63138479) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172327 + ... + 172692.

It is an arithmetic number, because the mean of its divisors is an integer number (10695620).

Almost surely, 2^63138477 is an apocalyptic number.

It is an amenable number.

63138477 is a deficient number, since it is larger than the sum of its proper divisors (22426483).

63138477 is a wasteful number, since it uses less digits than its factorization.

63138477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345083.

The product of its digits is 84672, while the sum is 39.

The square root of 63138477 is about 7945.9723759902. The cubic root of 63138477 is about 398.1970460189.

The spelling of 63138477 in words is "sixty-three million, one hundred thirty-eight thousand, four hundred seventy-seven".