215102432 has 12 divisors (see below), whose sum is σ = 423482976. Its totient is φ = 107551200.

The previous prime is 215102431. The next prime is 215102443. The reversal of 215102432 is 234201512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215102431) 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 as a sum of consecutive naturals, namely, 3360944 + ... + 3361007.

It is an arithmetic number, because the mean of its divisors is an integer number (35290248).

Almost surely, 2^215102432 is an apocalyptic number.

It is an amenable number.

215102432 is a deficient number, since it is larger than the sum of its proper divisors (208380544).

215102432 is an equidigital number, since it uses as much as digits as its factorization.

215102432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6721961 (or 6721953 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 215102432 is about 14666.3707848943. The cubic root of 215102432 is about 599.1677646929.

Adding to 215102432 its reverse (234201512), we get a palindrome (449303944).

The spelling of 215102432 in words is "two hundred fifteen million, one hundred two thousand, four hundred thirty-two".