64715245 has 16 divisors (see below), whose sum is σ = 89635968. Its totient is φ = 43934400.

The previous prime is 64715237. The next prime is 64715267. The reversal of 64715245 is 54251746.

It is not a de Polignac number, because 64715245 - 2³ = 64715237 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 64715245.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5619 + ... + 12688.

It is an arithmetic number, because the mean of its divisors is an integer number (5602248).

Almost surely, 2^64715245 is an apocalyptic number.

It is an amenable number.

64715245 is a deficient number, since it is larger than the sum of its proper divisors (24920723).

64715245 is a wasteful number, since it uses less digits than its factorization.

64715245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18420.

The product of its digits is 33600, while the sum is 34.

The square root of 64715245 is about 8044.5786092250. The cubic root of 64715245 is about 401.4845770112.

The spelling of 64715245 in words is "sixty-four million, seven hundred fifteen thousand, two hundred forty-five".