64546013 has 16 divisors (see below), whose sum is σ = 75962880. Its totient is φ = 53692800.

The previous prime is 64546003. The next prime is 64546033. The reversal of 64546013 is 31064546.

It is a happy number.

It is not a de Polignac number, because 64546013 - 2¹⁰ = 64544989 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64546003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 68123 + ... + 69063.

It is an arithmetic number, because the mean of its divisors is an integer number (4747680).

Almost surely, 2^64546013 is an apocalyptic number.

It is an amenable number.

64546013 is a deficient number, since it is larger than the sum of its proper divisors (11416867).

64546013 is a wasteful number, since it uses less digits than its factorization.

64546013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1228.

The product of its (nonzero) digits is 8640, while the sum is 29.

The square root of 64546013 is about 8034.0533356457. The cubic root of 64546013 is about 401.1343074095.

The spelling of 64546013 in words is "sixty-four million, five hundred forty-six thousand, thirteen".