64456451 has 2 divisors, whose sum is σ = 64456452. Its totient is φ = 64456450.

The previous prime is 64456439. The next prime is 64456463. The reversal of 64456451 is 15465446.

It is a balanced prime because it is at equal distance from previous prime (64456439) and next prime (64456463).

It is a cyclic number.

It is not a de Polignac number, because 64456451 - 2¹⁰ = 64455427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64455451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32228225 + 32228226.

It is an arithmetic number, because the mean of its divisors is an integer number (32228226).

Almost surely, 2^64456451 is an apocalyptic number.

64456451 is a deficient number, since it is larger than the sum of its proper divisors (1).

64456451 is an equidigital number, since it uses as much as digits as its factorization.

64456451 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 64456451 is about 8028.4775019925. The cubic root of 64456451 is about 400.9486877833.

The spelling of 64456451 in words is "sixty-four million, four hundred fifty-six thousand, four hundred fifty-one".