63144631 has 16 divisors (see below), whose sum is σ = 70357248. Its totient is φ = 56190400.

The previous prime is 63144623. The next prime is 63144649. The reversal of 63144631 is 13644136.

It is a cyclic number.

It is not a de Polignac number, because 63144631 - 2³ = 63144623 is a prime.

It is a super-2 number, since 2×63144631² = 7974488848252322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63144631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63144611) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 181800 + ... + 182146.

It is an arithmetic number, because the mean of its divisors is an integer number (4397328).

Almost surely, 2^63144631 is an apocalyptic number.

63144631 is a deficient number, since it is larger than the sum of its proper divisors (7212617).

63144631 is a wasteful number, since it uses less digits than its factorization.

63144631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662.

The product of its digits is 5184, while the sum is 28.

The square root of 63144631 is about 7946.3596067633. The cubic root of 63144631 is about 398.2099827950.

Adding to 63144631 its reverse (13644136), we get a palindrome (76788767).

The spelling of 63144631 in words is "sixty-three million, one hundred forty-four thousand, six hundred thirty-one".