215240152 has 16 divisors (see below), whose sum is σ = 406523160. Its totient is φ = 106833984.

The previous prime is 215240149. The next prime is 215240153. The reversal of 215240152 is 251042512.

215240152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215240153) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 97098 + ... + 99289.

Almost surely, 2^215240152 is an apocalyptic number.

It is an amenable number.

215240152 is a deficient number, since it is larger than the sum of its proper divisors (191283008).

215240152 is a wasteful number, since it uses less digits than its factorization.

215240152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 196530 (or 196526 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 215240152 is about 14671.0651283402. The cubic root of 215240152 is about 599.2956104195.

Adding to 215240152 its reverse (251042512), we get a palindrome (466282664).

The spelling of 215240152 in words is "two hundred fifteen million, two hundred forty thousand, one hundred fifty-two".