1312931573 has 8 divisors (see below), whose sum is σ = 1407761280. Its totient is φ = 1220057280.

The previous prime is 1312931533. The next prime is 1312931591. The reversal of 1312931573 is 3751392131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1312931573 - 2¹⁴ = 1312915189 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312931533) 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, 487463 + ... + 490148.

It is an arithmetic number, because the mean of its divisors is an integer number (175970160).

Almost surely, 2^1312931573 is an apocalyptic number.

It is an amenable number.

1312931573 is a deficient number, since it is larger than the sum of its proper divisors (94829707).

1312931573 is an equidigital number, since it uses as much as digits as its factorization.

1312931573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 977707.

The product of its digits is 17010, while the sum is 35.

The square root of 1312931573 is about 36234.3976491952. The cubic root of 1312931573 is about 1094.9997770410. Note that the first 3 decimals are identical.

The spelling of 1312931573 in words is "one billion, three hundred twelve million, nine hundred thirty-one thousand, five hundred seventy-three".