64514545 has 8 divisors (see below), whose sum is σ = 77811624. Its totient is φ = 51348864.

The previous prime is 64514543. The next prime is 64514561. The reversal of 64514545 is 54541546.

It can be written as a sum of positive squares in 4 ways, for example, as 22924944 + 41589601 = 4788^2 + 6449^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64514545 - 2¹ = 64514543 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64514545.

It is not an unprimeable number, because it can be changed into a prime (64514543) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31764 + ... + 33733.

It is an arithmetic number, because the mean of its divisors is an integer number (9726453).

Almost surely, 2^64514545 is an apocalyptic number.

It is an amenable number.

64514545 is a deficient number, since it is larger than the sum of its proper divisors (13297079).

64514545 is a wasteful number, since it uses less digits than its factorization.

64514545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65699.

The product of its digits is 48000, while the sum is 34.

The square root of 64514545 is about 8032.0946832069. The cubic root of 64514545 is about 401.0691087206.

The spelling of 64514545 in words is "sixty-four million, five hundred fourteen thousand, five hundred forty-five".