3215145412 has 12 divisors (see below), whose sum is σ = 5681131456. Its totient is φ = 1591965000.

The previous prime is 3215145379. The next prime is 3215145433. The reversal of 3215145412 is 2145415123.

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, 3901464 + ... + 3902287.

Almost surely, 2^3215145412 is an apocalyptic number.

It is an amenable number.

3215145412 is a deficient number, since it is larger than the sum of its proper divisors (2465986044).

3215145412 is a wasteful number, since it uses less digits than its factorization.

3215145412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7803858 (or 7803856 counting only the distinct ones).

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

The square root of 3215145412 is about 56702.2522656728. The cubic root of 3215145412 is about 1475.9337819114.

The spelling of 3215145412 in words is "three billion, two hundred fifteen million, one hundred forty-five thousand, four hundred twelve".