64451113 has 2 divisors, whose sum is σ = 64451114. Its totient is φ = 64451112.

The previous prime is 64451099. The next prime is 64451143. The reversal of 64451113 is 31115446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47706649 + 16744464 = 6907^2 + 4092^2 .

It is a cyclic number.

It is not a de Polignac number, because 64451113 - 2⁵ = 64451081 is a prime.

It is not a weakly prime, because it can be changed into another prime (64451143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32225556 + 32225557.

It is an arithmetic number, because the mean of its divisors is an integer number (32225557).

Almost surely, 2^64451113 is an apocalyptic number.

It is an amenable number.

64451113 is a deficient number, since it is larger than the sum of its proper divisors (1).

64451113 is an equidigital number, since it uses as much as digits as its factorization.

64451113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 64451113 is about 8028.1450534977. The cubic root of 64451113 is about 400.9376192083.

Adding to 64451113 its reverse (31115446), we get a palindrome (95566559).

The spelling of 64451113 in words is "sixty-four million, four hundred fifty-one thousand, one hundred thirteen".