215235412 has 12 divisors (see below), whose sum is σ = 430470880. Its totient is φ = 92243736.

The previous prime is 215235407. The next prime is 215235443. The reversal of 215235412 is 214532512.

215235412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

215235412 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3843462 + ... + 3843517.

Almost surely, 2^215235412 is an apocalyptic number.

It is an amenable number.

215235412 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

215235412 is a wasteful number, since it uses less digits than its factorization.

215235412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7686990 (or 7686988 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 215235412 is about 14670.9035849875. The cubic root of 215235412 is about 599.2912111752.

Adding to 215235412 its reverse (214532512), we get a palindrome (429767924).

The spelling of 215235412 in words is "two hundred fifteen million, two hundred thirty-five thousand, four hundred twelve".