64160513 has 4 divisors (see below), whose sum is σ = 64191060. Its totient is φ = 64129968.

The previous prime is 64160497. The next prime is 64160519. The reversal of 64160513 is 31506146.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11336689 + 52823824 = 3367^2 + 7268^2 .

It is a cyclic number.

It is not a de Polignac number, because 64160513 - 2⁴ = 64160497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64160519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11870 + ... + 16407.

It is an arithmetic number, because the mean of its divisors is an integer number (16047765).

Almost surely, 2^64160513 is an apocalyptic number.

It is an amenable number.

64160513 is a deficient number, since it is larger than the sum of its proper divisors (30547).

64160513 is a wasteful number, since it uses less digits than its factorization.

64160513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30546.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 64160513 is about 8010.0257802332. The cubic root of 64160513 is about 400.3341229103.

Adding to 64160513 its reverse (31506146), we get a palindrome (95666659).

The spelling of 64160513 in words is "sixty-four million, one hundred sixty thousand, five hundred thirteen".