64315745 has 16 divisors (see below), whose sum is σ = 85052352. Its totient is φ = 46388160.

The previous prime is 64315739. The next prime is 64315747. The reversal of 64315745 is 54751346.

64315745 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64315745 - 2⁴ = 64315729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64315747) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8711 + ... + 14300.

It is an arithmetic number, because the mean of its divisors is an integer number (5315772).

Almost surely, 2^64315745 is an apocalyptic number.

64315745 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

64315745 is a deficient number, since it is larger than the sum of its proper divisors (20736607).

64315745 is a wasteful number, since it uses less digits than its factorization.

64315745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23072.

The product of its digits is 50400, while the sum is 35.

The square root of 64315745 is about 8019.7097827789. The cubic root of 64315745 is about 400.6567232796.

The spelling of 64315745 in words is "sixty-four million, three hundred fifteen thousand, seven hundred forty-five".