215535132 has 36 divisors (see below), whose sum is σ = 545410320. Its totient is φ = 71767872.

The previous prime is 215535119. The next prime is 215535161. The reversal of 215535132 is 231535512.

It is a happy number.

215535132 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 215535096 and 215535105.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37993 + ... + 43295.

Almost surely, 2^215535132 is an apocalyptic number.

It is an amenable number.

215535132 is an abundant number, since it is smaller than the sum of its proper divisors (329875188).

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

215535132 is a wasteful number, since it uses less digits than its factorization.

215535132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6442 (or 6437 counting only the distinct ones).

The product of its digits is 4500, while the sum is 27.

The square root of 215535132 is about 14681.1148078067. The cubic root of 215535132 is about 599.5692575088.

The spelling of 215535132 in words is "two hundred fifteen million, five hundred thirty-five thousand, one hundred thirty-two".