215120092 has 18 divisors (see below), whose sum is σ = 413795984. Its totient is φ = 97781640.

The previous prime is 215120089. The next prime is 215120117. The reversal of 215120092 is 290021512.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 221748 + ... + 222715.

Almost surely, 2^215120092 is an apocalyptic number.

215120092 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

215120092 is a deficient number, since it is larger than the sum of its proper divisors (198675892).

215120092 is a wasteful number, since it uses less digits than its factorization.

215120092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444489 (or 444476 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 215120092 is about 14666.9728301378. The cubic root of 215120092 is about 599.1841615525.

The spelling of 215120092 in words is "two hundred fifteen million, one hundred twenty thousand, ninety-two".