215354132 has 48 divisors (see below), whose sum is σ = 455024640. Its totient is φ = 87119712.

The previous prime is 215354123. The next prime is 215354149. The reversal of 215354132 is 231453512.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 194693 + ... + 195795.

It is an arithmetic number, because the mean of its divisors is an integer number (9479680).

Almost surely, 2^215354132 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 215354132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227512320).

215354132 is an abundant number, since it is smaller than the sum of its proper divisors (239670508).

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

215354132 is a wasteful number, since it uses less digits than its factorization.

215354132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500 (or 1498 counting only the distinct ones).

The product of its digits is 3600, while the sum is 26.

The square root of 215354132 is about 14674.9491310873. The cubic root of 215354132 is about 599.4013770236.

The spelling of 215354132 in words is "two hundred fifteen million, three hundred fifty-four thousand, one hundred thirty-two".