1312606329 has 16 divisors (see below), whose sum is σ = 1866432960. Its totient is φ = 817666560.

The previous prime is 1312606319. The next prime is 1312606369. The reversal of 1312606329 is 9236062131.

It is not a de Polignac number, because 1312606329 - 2⁹ = 1312605817 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1312606329.

It is not an unprimeable number, because it can be changed into a prime (1312606319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85492 + ... + 99669.

It is an arithmetic number, because the mean of its divisors is an integer number (116652060).

Almost surely, 2^1312606329 is an apocalyptic number.

It is an amenable number.

1312606329 is a deficient number, since it is larger than the sum of its proper divisors (553826631).

1312606329 is a wasteful number, since it uses less digits than its factorization.

1312606329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185320.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 1312606329 is about 36229.9093153709. The cubic root of 1312606329 is about 1094.9093505159.

The spelling of 1312606329 in words is "one billion, three hundred twelve million, six hundred six thousand, three hundred twenty-nine".