215213150 has 24 divisors (see below), whose sum is σ = 400748904. Its totient is φ = 85988000.

The previous prime is 215213137. The next prime is 215213153. The reversal of 215213150 is 51312512.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215213153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56300 + ... + 60000.

It is an arithmetic number, because the mean of its divisors is an integer number (16697871).

Almost surely, 2^215213150 is an apocalyptic number.

215213150 is a deficient number, since it is larger than the sum of its proper divisors (185535754).

215213150 is a wasteful number, since it uses less digits than its factorization.

215213150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4876 (or 4871 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 215213150 is about 14670.1448527273. The cubic root of 215213150 is about 599.2705487126.

Adding to 215213150 its reverse (51312512), we get a palindrome (266525662).

The spelling of 215213150 in words is "two hundred fifteen million, two hundred thirteen thousand, one hundred fifty".