64462513 has 4 divisors (see below), whose sum is σ = 64520740. Its totient is φ = 64404288.

The previous prime is 64462511. The next prime is 64462571. The reversal of 64462513 is 31526446.

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 3122289 + 61340224 = 1767^2 + 7832^2 .

It is a cyclic number.

It is not a de Polignac number, because 64462513 - 2¹ = 64462511 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64462511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27420 + ... + 29677.

It is an arithmetic number, because the mean of its divisors is an integer number (16130185).

Almost surely, 2^64462513 is an apocalyptic number.

It is an amenable number.

64462513 is a deficient number, since it is larger than the sum of its proper divisors (58227).

64462513 is a wasteful number, since it uses less digits than its factorization.

64462513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58226.

The product of its digits is 17280, while the sum is 31.

The square root of 64462513 is about 8028.8550242236. The cubic root of 64462513 is about 400.9612568627.

Adding to 64462513 its reverse (31526446), we get a palindrome (95988959).

The spelling of 64462513 in words is "sixty-four million, four hundred sixty-two thousand, five hundred thirteen".