1215490912 has 12 divisors (see below), whose sum is σ = 2392997796. Its totient is φ = 607745440.

The previous prime is 1215490909. The next prime is 1215490979. The reversal of 1215490912 is 2190945121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18992014 + ... + 18992077.

It is an arithmetic number, because the mean of its divisors is an integer number (199416483).

Almost surely, 2^1215490912 is an apocalyptic number.

It is an amenable number.

1215490912 is a deficient number, since it is larger than the sum of its proper divisors (1177506884).

1215490912 is an equidigital number, since it uses as much as digits as its factorization.

1215490912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37984101 (or 37984093 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 34.

The square root of 1215490912 is about 34863.8912343416. The cubic root of 1215490912 is about 1067.2116857083.

The spelling of 1215490912 in words is "one billion, two hundred fifteen million, four hundred ninety thousand, nine hundred twelve".