1312903679 has 4 divisors (see below), whose sum is σ = 1314551784. Its totient is φ = 1311255576.

The previous prime is 1312903663. The next prime is 1312903729. The reversal of 1312903679 is 9763092131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1312903679 - 2⁴ = 1312903663 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312903609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 822857 + ... + 824450.

It is an arithmetic number, because the mean of its divisors is an integer number (328637946).

Almost surely, 2^1312903679 is an apocalyptic number.

1312903679 is a deficient number, since it is larger than the sum of its proper divisors (1648105).

1312903679 is an equidigital number, since it uses as much as digits as its factorization.

1312903679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648104.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 1312903679 is about 36234.0127366539. The cubic root of 1312903679 is about 1094.9920223490.

The spelling of 1312903679 in words is "one billion, three hundred twelve million, nine hundred three thousand, six hundred seventy-nine".