1260664312 has 8 divisors (see below), whose sum is σ = 2363745600. Its totient is φ = 630332152.

The previous prime is 1260664261. The next prime is 1260664319. The reversal of 1260664312 is 2134660621.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1260664319) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78791512 + ... + 78791527.

It is an arithmetic number, because the mean of its divisors is an integer number (295468200).

Almost surely, 2^1260664312 is an apocalyptic number.

It is an amenable number.

1260664312 is a deficient number, since it is larger than the sum of its proper divisors (1103081288).

1260664312 is a wasteful number, since it uses less digits than its factorization.

1260664312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157583045 (or 157583041 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 1260664312 is about 35505.8349007596. The cubic root of 1260664312 is about 1080.2720827977.

The spelling of 1260664312 in words is "one billion, two hundred sixty million, six hundred sixty-four thousand, three hundred twelve".