63983131 has 2 divisors, whose sum is σ = 63983132. Its totient is φ = 63983130.

The previous prime is 63983119. The next prime is 63983149. The reversal of 63983131 is 13138936.

63983131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63983131 - 2⁵ = 63983099 is a prime.

It is a super-2 number, since 2×63983131² = 8187682105126322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63984131) 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 as a sum of consecutive naturals, namely, 31991565 + 31991566.

It is an arithmetic number, because the mean of its divisors is an integer number (31991566).

Almost surely, 2^63983131 is an apocalyptic number.

63983131 is a deficient number, since it is larger than the sum of its proper divisors (1).

63983131 is an equidigital number, since it uses as much as digits as its factorization.

63983131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 63983131 is about 7998.9456180174. The cubic root of 63983131 is about 399.9648531618.

The spelling of 63983131 in words is "sixty-three million, nine hundred eighty-three thousand, one hundred thirty-one".