215045612 has 24 divisors (see below), whose sum is σ = 384800304. Its totient is φ = 105126912.

The previous prime is 215045587. The next prime is 215045617. The reversal of 215045612 is 216540512.

It is not an unprimeable number, because it can be changed into a prime (215045617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33788 + ... + 39644.

It is an arithmetic number, because the mean of its divisors is an integer number (16033346).

Almost surely, 2^215045612 is an apocalyptic number.

It is an amenable number.

215045612 is a deficient number, since it is larger than the sum of its proper divisors (169754692).

215045612 is a wasteful number, since it uses less digits than its factorization.

215045612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6065 (or 6063 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 215045612 is about 14664.4335724228. The cubic root of 215045612 is about 599.1150026821.

The spelling of 215045612 in words is "two hundred fifteen million, forty-five thousand, six hundred twelve".