215248892 has 12 divisors (see below), whose sum is σ = 376793760. Its totient is φ = 107593536.

The previous prime is 215248799. The next prime is 215248921. The reversal of 215248892 is 298842512.

It is a happy number.

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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, 16109 + ... + 26267.

It is an arithmetic number, because the mean of its divisors is an integer number (31399480).

Almost surely, 2^215248892 is an apocalyptic number.

It is an amenable number.

215248892 is a deficient number, since it is larger than the sum of its proper divisors (161544868).

215248892 is a wasteful number, since it uses less digits than its factorization.

215248892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15460 (or 15458 counting only the distinct ones).

The product of its digits is 92160, while the sum is 41.

The square root of 215248892 is about 14671.3629905336. The cubic root of 215248892 is about 599.3037219369.

The spelling of 215248892 in words is "two hundred fifteen million, two hundred forty-eight thousand, eight hundred ninety-two".