215351332 has 48 divisors (see below), whose sum is σ = 449688960. Its totient is φ = 88284672.

The previous prime is 215351309. The next prime is 215351341. The reversal of 215351332 is 233153512.

215351332 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 215351297 and 215351306.

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, 90583 + ... + 92929.

It is an arithmetic number, because the mean of its divisors is an integer number (9368520).

Almost surely, 2^215351332 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 215351332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (224844480).

215351332 is an abundant number, since it is smaller than the sum of its proper divisors (234337628).

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

215351332 is a wasteful number, since it uses less digits than its factorization.

215351332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2500 (or 2498 counting only the distinct ones).

The product of its digits is 2700, while the sum is 25.

The square root of 215351332 is about 14674.8537301058. The cubic root of 215351332 is about 599.3987792387.

The spelling of 215351332 in words is "two hundred fifteen million, three hundred fifty-one thousand, three hundred thirty-two".