63131304 has 16 divisors (see below), whose sum is σ = 157828320. Its totient is φ = 21043760.

The previous prime is 63131303. The next prime is 63131311. The reversal of 63131304 is 40313136.

63131304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×63131304⁴ (a number of 32 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (63131303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1315212 + ... + 1315259.

It is an arithmetic number, because the mean of its divisors is an integer number (9864270).

Almost surely, 2^63131304 is an apocalyptic number.

It is an amenable number.

63131304 is an abundant number, since it is smaller than the sum of its proper divisors (94697016).

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

63131304 is a wasteful number, since it uses less digits than its factorization.

63131304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2630480 (or 2630476 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 63131304 is about 7945.5210024265. The cubic root of 63131304 is about 398.1819660671.

The spelling of 63131304 in words is "sixty-three million, one hundred thirty-one thousand, three hundred four".