1252912216 has 8 divisors (see below), whose sum is σ = 2349210420. Its totient is φ = 626456104.

The previous prime is 1252912183. The next prime is 1252912253. The reversal of 1252912216 is 6122192521.

It is a tau number, because it is divible by the number of its divisors (8).

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, 78307006 + ... + 78307021.

Almost surely, 2^1252912216 is an apocalyptic number.

It is an amenable number.

1252912216 is a deficient number, since it is larger than the sum of its proper divisors (1096298204).

1252912216 is a wasteful number, since it uses less digits than its factorization.

1252912216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156614033 (or 156614029 counting only the distinct ones).

The product of its digits is 4320, while the sum is 31.

The square root of 1252912216 is about 35396.5000529713. The cubic root of 1252912216 is about 1078.0532534161.

The spelling of 1252912216 in words is "one billion, two hundred fifty-two million, nine hundred twelve thousand, two hundred sixteen".