215334045 has 20 divisors (see below), whose sum is σ = 386006940. Its totient is φ = 114844608.

The previous prime is 215334037. The next prime is 215334059. The reversal of 215334045 is 540433512.

It can be written as a sum of positive squares in 2 ways, for example, as 34539129 + 180794916 = 5877^2 + 13446^2 .

It is not a de Polignac number, because 215334045 - 2³ = 215334037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 19 ways as a sum of consecutive naturals, for example, 265440 + ... + 266249.

It is an arithmetic number, because the mean of its divisors is an integer number (19300347).

Almost surely, 2^215334045 is an apocalyptic number.

It is an amenable number.

215334045 is a deficient number, since it is larger than the sum of its proper divisors (170672895).

215334045 is an equidigital number, since it uses as much as digits as its factorization.

215334045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 531706 (or 531697 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 215334045 is about 14674.2647175250. The cubic root of 215334045 is about 599.3827402017.

Adding to 215334045 its reverse (540433512), we get a palindrome (755767557).

The spelling of 215334045 in words is "two hundred fifteen million, three hundred thirty-four thousand, forty-five".