63165331 has 2 divisors, whose sum is σ = 63165332. Its totient is φ = 63165330.

The previous prime is 63165307. The next prime is 63165397. The reversal of 63165331 is 13356136.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63165331 - 2⁹ = 63164819 is a prime.

It is a super-2 number, since 2×63165331² = 7979718080679122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 63165331.

It is not a weakly prime, because it can be changed into another prime (63165731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31582665 + 31582666.

It is an arithmetic number, because the mean of its divisors is an integer number (31582666).

Almost surely, 2^63165331 is an apocalyptic number.

63165331 is a deficient number, since it is larger than the sum of its proper divisors (1).

63165331 is an equidigital number, since it uses as much as digits as its factorization.

63165331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4860, while the sum is 28.

The square root of 63165331 is about 7947.6619832502. The cubic root of 63165331 is about 398.2534916199.

The spelling of 63165331 in words is "sixty-three million, one hundred sixty-five thousand, three hundred thirty-one".