215132315 has 8 divisors (see below), whose sum is σ = 258811440. Its totient is φ = 171670752.

The previous prime is 215132303. The next prime is 215132339. The reversal of 215132315 is 513231512.

It is a happy number.

215132315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 215132315 - 2⁶ = 215132251 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52205 + ... + 56174.

It is an arithmetic number, because the mean of its divisors is an integer number (32351430).

Almost surely, 2^215132315 is an apocalyptic number.

215132315 is a deficient number, since it is larger than the sum of its proper divisors (43679125).

215132315 is a wasteful number, since it uses less digits than its factorization.

215132315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108781.

The product of its digits is 900, while the sum is 23.

The square root of 215132315 is about 14667.3895087026. The cubic root of 215132315 is about 599.1955097708.

Adding to 215132315 its reverse (513231512), we get a palindrome (728363827).

The spelling of 215132315 in words is "two hundred fifteen million, one hundred thirty-two thousand, three hundred fifteen".