63116491 has 2 divisors, whose sum is σ = 63116492. Its totient is φ = 63116490.

The previous prime is 63116453. The next prime is 63116503. The reversal of 63116491 is 19461136.

63116491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63116491 - 2¹³ = 63108299 is a prime.

It is not a weakly prime, because it can be changed into another prime (63116591) 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, 31558245 + 31558246.

It is an arithmetic number, because the mean of its divisors is an integer number (31558246).

Almost surely, 2^63116491 is an apocalyptic number.

63116491 is a deficient number, since it is larger than the sum of its proper divisors (1).

63116491 is an equidigital number, since it uses as much as digits as its factorization.

63116491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 31.

The square root of 63116491 is about 7944.5887873445. The cubic root of 63116491 is about 398.1508207637.

The spelling of 63116491 in words is "sixty-three million, one hundred sixteen thousand, four hundred ninety-one".