64515135 has 8 divisors (see below), whose sum is σ = 103224240. Its totient is φ = 34408064.

The previous prime is 64515131. The next prime is 64515173. The reversal of 64515135 is 53151546.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64515135 - 2² = 64515131 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64515131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2150490 + ... + 2150519.

It is an arithmetic number, because the mean of its divisors is an integer number (12903030).

Almost surely, 2^64515135 is an apocalyptic number.

64515135 is a deficient number, since it is larger than the sum of its proper divisors (38709105).

64515135 is a wasteful number, since it uses less digits than its factorization.

64515135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4301017.

The product of its digits is 9000, while the sum is 30.

The square root of 64515135 is about 8032.1314107776. The cubic root of 64515135 is about 401.0703313392.

The spelling of 64515135 in words is "sixty-four million, five hundred fifteen thousand, one hundred thirty-five".