1312006973 has 2 divisors, whose sum is σ = 1312006974. Its totient is φ = 1312006972.

The previous prime is 1312006921. The next prime is 1312006987. The reversal of 1312006973 is 3796002131.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 956231929 + 355775044 = 30923^2 + 18862^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312006973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312006903) 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 as a sum of consecutive naturals, namely, 656003486 + 656003487.

It is an arithmetic number, because the mean of its divisors is an integer number (656003487).

Almost surely, 2^1312006973 is an apocalyptic number.

It is an amenable number.

1312006973 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312006973 is an equidigital number, since it uses as much as digits as its factorization.

1312006973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 1312006973 is about 36221.6368073007. The cubic root of 1312006973 is about 1094.7426743940.

The spelling of 1312006973 in words is "one billion, three hundred twelve million, six thousand, nine hundred seventy-three".