215156060 has 36 divisors (see below), whose sum is σ = 525597912. Its totient is φ = 73767456.

The previous prime is 215156059. The next prime is 215156087. The reversal of 215156060 is 60651512.

It is a congruent number.

It is an unprimeable number.

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 in 11 ways as a sum of consecutive naturals, for example, 108794 + ... + 110753.

It is an arithmetic number, because the mean of its divisors is an integer number (14599942).

Almost surely, 2^215156060 is an apocalyptic number.

215156060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215156060 is an abundant number, since it is smaller than the sum of its proper divisors (310441852).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215156060 is a wasteful number, since it uses less digits than its factorization.

215156060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219570 (or 219561 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 215156060 is about 14668.1989351113. The cubic root of 215156060 is about 599.2175541484.

The spelling of 215156060 in words is "two hundred fifteen million, one hundred fifty-six thousand, sixty".