63311137 has 2 divisors, whose sum is σ = 63311138. Its totient is φ = 63311136.

The previous prime is 63311123. The next prime is 63311159. The reversal of 63311137 is 73111336.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60699681 + 2611456 = 7791^2 + 1616^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63311137 is a prime.

It is not a weakly prime, because it can be changed into another prime (63311167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31655568 + 31655569.

It is an arithmetic number, because the mean of its divisors is an integer number (31655569).

Almost surely, 2^63311137 is an apocalyptic number.

It is an amenable number.

63311137 is a deficient number, since it is larger than the sum of its proper divisors (1).

63311137 is an equidigital number, since it uses as much as digits as its factorization.

63311137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1134, while the sum is 25.

The square root of 63311137 is about 7956.8295821891. The cubic root of 63311137 is about 398.5596887335.

The spelling of 63311137 in words is "sixty-three million, three hundred eleven thousand, one hundred thirty-seven".