64745453 has 12 divisors (see below), whose sum is σ = 67742460. Its totient is φ = 61871040.

The previous prime is 64745441. The next prime is 64745501. The reversal of 64745453 is 35454746.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 25532809 + 39212644 = 5053^2 + 6262^2 .

It is not a de Polignac number, because 64745453 - 2⁶ = 64745389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64745413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85151 + ... + 85907.

It is an arithmetic number, because the mean of its divisors is an integer number (5645205).

Almost surely, 2^64745453 is an apocalyptic number.

It is an amenable number.

64745453 is a deficient number, since it is larger than the sum of its proper divisors (2997007).

64745453 is an equidigital number, since it uses as much as digits as its factorization.

64745453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 877 counting only the distinct ones).

The product of its digits is 201600, while the sum is 38.

The square root of 64745453 is about 8046.4559279226. The cubic root of 64745453 is about 401.5470360682.

The spelling of 64745453 in words is "sixty-four million, seven hundred forty-five thousand, four hundred fifty-three".