215303132 has 12 divisors (see below), whose sum is σ = 411033336. Its totient is φ = 97865040.

The previous prime is 215303129. The next prime is 215303159. The reversal of 215303132 is 231303512.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2446583 + ... + 2446670.

It is an arithmetic number, because the mean of its divisors is an integer number (34252778).

Almost surely, 2^215303132 is an apocalyptic number.

215303132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215303132 is a deficient number, since it is larger than the sum of its proper divisors (195730204).

215303132 is a wasteful number, since it uses less digits than its factorization.

215303132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4893268 (or 4893266 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 215303132 is about 14673.2113731112. The cubic root of 215303132 is about 599.3540566968.

Adding to 215303132 its reverse (231303512), we get a palindrome (446606644).

The spelling of 215303132 in words is "two hundred fifteen million, three hundred three thousand, one hundred thirty-two".