1312908266 has 16 divisors (see below), whose sum is σ = 2085937920. Its totient is φ = 617622720.

The previous prime is 1312908253. The next prime is 1312908269. The reversal of 1312908266 is 6628092131.

It is a happy number.

It is a super-2 number, since 2×1312908266² = 3447456229862253512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312908269) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134375 + ... + 143813.

It is an arithmetic number, because the mean of its divisors is an integer number (130371120).

Almost surely, 2^1312908266 is an apocalyptic number.

1312908266 is a deficient number, since it is larger than the sum of its proper divisors (773029654).

1312908266 is a wasteful number, since it uses less digits than its factorization.

1312908266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13549.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 1312908266 is about 36234.0760334799. The cubic root of 1312908266 is about 1094.9932975688.

The spelling of 1312908266 in words is "one billion, three hundred twelve million, nine hundred eight thousand, two hundred sixty-six".