215633152 has 36 divisors (see below), whose sum is σ = 491917216. Its totient is φ = 92413440.

The previous prime is 215633149. The next prime is 215633153. The reversal of 215633152 is 251336512.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a self number, because there is not a number n which added to its sum of digits gives 215633152.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215633153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58374 + ... + 61957.

Almost surely, 2^215633152 is an apocalyptic number.

It is an amenable number.

215633152 is an abundant number, since it is smaller than the sum of its proper divisors (276284064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215633152 is an equidigital number, since it uses as much as digits as its factorization.

215633152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120354 (or 120340 counting only the distinct ones).

The product of its digits is 5400, while the sum is 28.

The square root of 215633152 is about 14684.4527306945. The cubic root of 215633152 is about 599.6601334468.

Adding to 215633152 its reverse (251336512), we get a palindrome (466969664).

The spelling of 215633152 in words is "two hundred fifteen million, six hundred thirty-three thousand, one hundred fifty-two".