215452612 has 6 divisors (see below), whose sum is σ = 377042078. Its totient is φ = 107726304.

The previous prime is 215452603. The next prime is 215452631. The reversal of 215452612 is 216254512.

It can be written as a sum of positive squares in only one way, i.e., 125126596 + 90326016 = 11186^2 + 9504^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26931573 + ... + 26931580.

Almost surely, 2^215452612 is an apocalyptic number.

It is an amenable number.

215452612 is a deficient number, since it is larger than the sum of its proper divisors (161589466).

215452612 is a wasteful number, since it uses less digits than its factorization.

215452612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53863157 (or 53863155 counting only the distinct ones).

The product of its digits is 4800, while the sum is 28.

The square root of 215452612 is about 14678.3041254772. The cubic root of 215452612 is about 599.4927305096.

The spelling of 215452612 in words is "two hundred fifteen million, four hundred fifty-two thousand, six hundred twelve".