215032158 has 192 divisors, whose sum is σ = 581817600. Its totient is φ = 58786560.

The previous prime is 215032141. The next prime is 215032171. The reversal of 215032158 is 851230512.

It is a happy number.

215032158 is a `hidden beast` number, since 2 + 1 + 503 + 2 + 158 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 95 ways as a sum of consecutive naturals, for example, 2945610 + ... + 2945682.

It is an arithmetic number, because the mean of its divisors is an integer number (3030300).

Almost surely, 2^215032158 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215032158, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (290908800).

215032158 is an abundant number, since it is smaller than the sum of its proper divisors (366785442).

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

215032158 is a wasteful number, since it uses less digits than its factorization.

215032158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 215032158 is about 14663.9748363123. The cubic root of 215032158 is about 599.1025081834.

The spelling of 215032158 in words is "two hundred fifteen million, thirty-two thousand, one hundred fifty-eight".