215030156 has 12 divisors (see below), whose sum is σ = 410512200. Its totient is φ = 97740960.

The previous prime is 215030149. The next prime is 215030171. The reversal of 215030156 is 651030512.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2443481 + ... + 2443568.

It is an arithmetic number, because the mean of its divisors is an integer number (34209350).

Almost surely, 2^215030156 is an apocalyptic number.

It is an amenable number.

215030156 is a deficient number, since it is larger than the sum of its proper divisors (195482044).

215030156 is a wasteful number, since it uses less digits than its factorization.

215030156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4887064 (or 4887062 counting only the distinct ones).

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

The square root of 215030156 is about 14663.9065736249. The cubic root of 215030156 is about 599.1006489159.

Adding to 215030156 its reverse (651030512), we get a palindrome (866060668).

The spelling of 215030156 in words is "two hundred fifteen million, thirty thousand, one hundred fifty-six".