215351045 has 32 divisors (see below), whose sum is σ = 323312640. Its totient is φ = 134058240.

The previous prime is 215351029. The next prime is 215351051. The reversal of 215351045 is 540153512.

It is not a de Polignac number, because 215351045 - 2⁴ = 215351029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23876 + ... + 31634.

It is an arithmetic number, because the mean of its divisors is an integer number (10103520).

Almost surely, 2^215351045 is an apocalyptic number.

It is an amenable number.

215351045 is a deficient number, since it is larger than the sum of its proper divisors (107961595).

215351045 is a wasteful number, since it uses less digits than its factorization.

215351045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7845.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 215351045 is about 14674.8439514701. The cubic root of 215351045 is about 599.3985129645.

The spelling of 215351045 in words is "two hundred fifteen million, three hundred fifty-one thousand, forty-five".