64503113 has 2 divisors, whose sum is σ = 64503114. Its totient is φ = 64503112.

The previous prime is 64503097. The next prime is 64503133. The reversal of 64503113 is 31130546.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62520649 + 1982464 = 7907^2 + 1408^2 .

It is a cyclic number.

It is not a de Polignac number, because 64503113 - 2⁴ = 64503097 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64503133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32251556 + 32251557.

It is an arithmetic number, because the mean of its divisors is an integer number (32251557).

Almost surely, 2^64503113 is an apocalyptic number.

It is an amenable number.

64503113 is a deficient number, since it is larger than the sum of its proper divisors (1).

64503113 is an equidigital number, since it uses as much as digits as its factorization.

64503113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 23.

The square root of 64503113 is about 8031.3830066807. The cubic root of 64503113 is about 401.0454174589.

Adding to 64503113 its reverse (31130546), we get a palindrome (95633659).

The spelling of 64503113 in words is "sixty-four million, five hundred three thousand, one hundred thirteen".