63534131 has 2 divisors, whose sum is σ = 63534132. Its totient is φ = 63534130.

The previous prime is 63534109. The next prime is 63534167. The reversal of 63534131 is 13143536.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 63534131 - 2²² = 59339827 is a prime.

It is a super-2 number, since 2×63534131² = 8073171603850322, 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 63534131.

It is not a weakly prime, because it can be changed into another prime (63534181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31767065 + 31767066.

It is an arithmetic number, because the mean of its divisors is an integer number (31767066).

Almost surely, 2^63534131 is an apocalyptic number.

63534131 is a deficient number, since it is larger than the sum of its proper divisors (1).

63534131 is an equidigital number, since it uses as much as digits as its factorization.

63534131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3240, while the sum is 26.

The square root of 63534131 is about 7970.8300069692. The cubic root of 63534131 is about 399.0270750446.

Adding to 63534131 its reverse (13143536), we get a palindrome (76677667).

The spelling of 63534131 in words is "sixty-three million, five hundred thirty-four thousand, one hundred thirty-one".