215132252 has 12 divisors (see below), whose sum is σ = 376591656. Its totient is φ = 107534640.

The previous prime is 215132251. The next prime is 215132257. The reversal of 215132252 is 252231512.

It is a hoax number, since the sum of its digits (23) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215132251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14678 + ... + 25410.

It is an arithmetic number, because the mean of its divisors is an integer number (31382638).

Almost surely, 2^215132252 is an apocalyptic number.

It is an amenable number.

215132252 is a deficient number, since it is larger than the sum of its proper divisors (161459404).

215132252 is a wasteful number, since it uses less digits than its factorization.

215132252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15748 (or 15746 counting only the distinct ones).

The product of its digits is 1200, while the sum is 23.

The square root of 215132252 is about 14667.3873610810. The cubic root of 215132252 is about 599.1954512808.

Adding to 215132252 its reverse (252231512), we get a palindrome (467363764).

The spelling of 215132252 in words is "two hundred fifteen million, one hundred thirty-two thousand, two hundred fifty-two".