215268945 has 8 divisors (see below), whose sum is σ = 344430336. Its totient is φ = 114810096.

The previous prime is 215268941. The next prime is 215268961. The reversal of 215268945 is 549862512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215268945 - 2² = 215268941 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 215268897 and 215268906.

It is not an unprimeable number, because it can be changed into a prime (215268941) 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, 7175617 + ... + 7175646.

It is an arithmetic number, because the mean of its divisors is an integer number (43053792).

Almost surely, 2^215268945 is an apocalyptic number.

It is an amenable number.

215268945 is a deficient number, since it is larger than the sum of its proper divisors (129161391).

215268945 is a wasteful number, since it uses less digits than its factorization.

215268945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14351271.

The product of its digits is 172800, while the sum is 42.

The square root of 215268945 is about 14672.0463807882. The cubic root of 215268945 is about 599.3223321208.

The spelling of 215268945 in words is "two hundred fifteen million, two hundred sixty-eight thousand, nine hundred forty-five".