1263307612 has 18 divisors (see below), whose sum is σ = 2571733752. Its totient is φ = 541417464.

The previous prime is 1263307609. The next prime is 1263307627. The reversal of 1263307612 is 2167033621.

It is a super-2 number, since 2×1263307612² = 3191892245074285088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3222528 + ... + 3222919.

Almost surely, 2^1263307612 is an apocalyptic number.

It is an amenable number.

1263307612 is an abundant number, since it is smaller than the sum of its proper divisors (1308426140).

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

1263307612 is a wasteful number, since it uses less digits than its factorization.

1263307612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6445465 (or 6445456 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 1263307612 is about 35543.0388683917. The cubic root of 1263307612 is about 1081.0265764787.

The spelling of 1263307612 in words is "one billion, two hundred sixty-three million, three hundred seven thousand, six hundred twelve".