64261451 has 2 divisors, whose sum is σ = 64261452. Its totient is φ = 64261450.

The previous prime is 64261447. The next prime is 64261459. The reversal of 64261451 is 15416246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64261451 - 2² = 64261447 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64261459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32130725 + 32130726.

It is an arithmetic number, because the mean of its divisors is an integer number (32130726).

Almost surely, 2^64261451 is an apocalyptic number.

64261451 is a deficient number, since it is larger than the sum of its proper divisors (1).

64261451 is an equidigital number, since it uses as much as digits as its factorization.

64261451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 64261451 is about 8016.3240328719. The cubic root of 64261451 is about 400.5439495453.

Adding to 64261451 its reverse (15416246), we get a palindrome (79677697).

The spelling of 64261451 in words is "sixty-four million, two hundred sixty-one thousand, four hundred fifty-one".