1316923873 has 2 divisors, whose sum is σ = 1316923874. Its totient is φ = 1316923872.

The previous prime is 1316923859. The next prime is 1316923961. The reversal of 1316923873 is 3783296131.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1068766864 + 248157009 = 32692^2 + 15753^2 .

It is a cyclic number.

It is not a de Polignac number, because 1316923873 - 2⁵ = 1316923841 is a prime.

It is not a weakly prime, because it can be changed into another prime (1316923073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 658461936 + 658461937.

It is an arithmetic number, because the mean of its divisors is an integer number (658461937).

Almost surely, 2^1316923873 is an apocalyptic number.

It is an amenable number.

1316923873 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316923873 is an equidigital number, since it uses as much as digits as its factorization.

1316923873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 43.

The square root of 1316923873 is about 36289.4457521743. The cubic root of 1316923873 is about 1096.1085284332.

The spelling of 1316923873 in words is "one billion, three hundred sixteen million, nine hundred twenty-three thousand, eight hundred seventy-three".