215452364 has 6 divisors (see below), whose sum is σ = 377041644. Its totient is φ = 107726180.

The previous prime is 215452351. The next prime is 215452379. The reversal of 215452364 is 463254512.

It is a self number, because there is not a number n which added to its sum of digits gives 215452364.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26931542 + ... + 26931549.

It is an arithmetic number, because the mean of its divisors is an integer number (62840274).

Almost surely, 2^215452364 is an apocalyptic number.

It is an amenable number.

215452364 is a deficient number, since it is larger than the sum of its proper divisors (161589280).

215452364 is a wasteful number, since it uses less digits than its factorization.

215452364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53863095 (or 53863093 counting only the distinct ones).

The product of its digits is 28800, while the sum is 32.

The square root of 215452364 is about 14678.2956776323. The cubic root of 215452364 is about 599.4925004911.

The spelling of 215452364 in words is "two hundred fifteen million, four hundred fifty-two thousand, three hundred sixty-four".