215325441 has 6 divisors (see below), whose sum is σ = 311025650. Its totient is φ = 143550288.

The previous prime is 215325433. The next prime is 215325449. The reversal of 215325441 is 144523512.

215325441 is a `hidden beast` number, since 215 + 3 + 2 + 5 + 441 = 666.

It is an interprime number because it is at equal distance from previous prime (215325433) and next prime (215325449).

It can be written as a sum of positive squares in only one way, i.e., 158760000 + 56565441 = 12600^2 + 7521^2 .

It is not a de Polignac number, because 215325441 - 2³ = 215325433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (215325449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11962516 + ... + 11962533.

Almost surely, 2^215325441 is an apocalyptic number.

It is an amenable number.

215325441 is a deficient number, since it is larger than the sum of its proper divisors (95700209).

215325441 is a wasteful number, since it uses less digits than its factorization.

215325441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23925055 (or 23925052 counting only the distinct ones).

The product of its digits is 4800, while the sum is 27.

The square root of 215325441 is about 14673.9715482892. The cubic root of 215325441 is about 599.3747570117.

Adding to 215325441 its reverse (144523512), we get a palindrome (359848953).

The spelling of 215325441 in words is "two hundred fifteen million, three hundred twenty-five thousand, four hundred forty-one".