215106852 has 12 divisors (see below), whose sum is σ = 501916016. Its totient is φ = 71702280.

The previous prime is 215106823. The next prime is 215106877. The reversal of 215106852 is 258601512.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8962774 + ... + 8962797.

Almost surely, 2^215106852 is an apocalyptic number.

It is an amenable number.

215106852 is an abundant number, since it is smaller than the sum of its proper divisors (286809164).

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

215106852 is a wasteful number, since it uses less digits than its factorization.

215106852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17925578 (or 17925576 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 30.

The square root of 215106852 is about 14666.5214689783. The cubic root of 215106852 is about 599.1718686344.

The spelling of 215106852 in words is "two hundred fifteen million, one hundred six thousand, eight hundred fifty-two".