64456545 has 16 divisors (see below), whose sum is σ = 103364352. Its totient is φ = 34298880.

The previous prime is 64456543. The next prime is 64456583. The reversal of 64456545 is 54565446.

It is not a de Polignac number, because 64456545 - 2¹ = 64456543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64456541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2305 + ... + 11585.

It is an arithmetic number, because the mean of its divisors is an integer number (6460272).

Almost surely, 2^64456545 is an apocalyptic number.

It is an amenable number.

64456545 is a deficient number, since it is larger than the sum of its proper divisors (38907807).

64456545 is a wasteful number, since it uses less digits than its factorization.

64456545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9752.

The product of its digits is 288000, while the sum is 39.

The square root of 64456545 is about 8028.4833561514. The cubic root of 64456545 is about 400.9488826909.

The spelling of 64456545 in words is "sixty-four million, four hundred fifty-six thousand, five hundred forty-five".