63131623 has 8 divisors (see below), whose sum is σ = 66528000. Its totient is φ = 59742648.

The previous prime is 63131617. The next prime is 63131633. The reversal of 63131623 is 32613136.

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

It is a cyclic number.

It is not a de Polignac number, because 63131623 - 2⁹ = 63131111 is a prime.

It is a super-2 number, since 2×63131623² = 7971203645228258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63131603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29028 + ... + 31126.

It is an arithmetic number, because the mean of its divisors is an integer number (8316000).

Almost surely, 2^63131623 is an apocalyptic number.

63131623 is a deficient number, since it is larger than the sum of its proper divisors (3396377).

63131623 is a wasteful number, since it uses less digits than its factorization.

63131623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3701.

The product of its digits is 1944, while the sum is 25.

The square root of 63131623 is about 7945.5410766039. The cubic root of 63131623 is about 398.1826367319.

Adding to 63131623 its reverse (32613136), we get a palindrome (95744759).

The spelling of 63131623 in words is "sixty-three million, one hundred thirty-one thousand, six hundred twenty-three".