215135264 has 24 divisors (see below), whose sum is σ = 424243008. Its totient is φ = 107391040.

The previous prime is 215135251. The next prime is 215135269. The reversal of 215135264 is 462531512.

It is not an unprimeable number, because it can be changed into a prime (215135269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15509 + ... + 25899.

It is an arithmetic number, because the mean of its divisors is an integer number (17676792).

Almost surely, 2^215135264 is an apocalyptic number.

It is an amenable number.

215135264 is a deficient number, since it is larger than the sum of its proper divisors (209107744).

215135264 is a wasteful number, since it uses less digits than its factorization.

215135264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11048 (or 11040 counting only the distinct ones).

The product of its digits is 7200, while the sum is 29.

The square root of 215135264 is about 14667.4900374945. The cubic root of 215135264 is about 599.1982476510.

Adding to 215135264 its reverse (462531512), we get a palindrome (677666776).

The spelling of 215135264 in words is "two hundred fifteen million, one hundred thirty-five thousand, two hundred sixty-four".