264012515 has 16 divisors (see below), whose sum is σ = 356021568. Its totient is φ = 186485376.

The previous prime is 264012509. The next prime is 264012517. The reversal of 264012515 is 515210462.

It is a cyclic number.

It is not a de Polignac number, because 264012515 - 2¹⁰ = 264011491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (264012517) 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, 86804 + ... + 89793.

It is an arithmetic number, because the mean of its divisors is an integer number (22251348).

Almost surely, 2^264012515 is an apocalyptic number.

264012515 is a deficient number, since it is larger than the sum of its proper divisors (92009053).

264012515 is a wasteful number, since it uses less digits than its factorization.

264012515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176638.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 264012515 is about 16248.4619272102. The cubic root of 264012515 is about 641.5170027814.

Adding to 264012515 its reverse (515210462), we get a palindrome (779222977).

The spelling of 264012515 in words is "two hundred sixty-four million, twelve thousand, five hundred fifteen".