1312702477 has 2 divisors, whose sum is σ = 1312702478. Its totient is φ = 1312702476.

The previous prime is 1312702451. The next prime is 1312702511. The reversal of 1312702477 is 7742072131.

It is an a-pointer prime, because the next prime (1312702511) can be obtained adding 1312702477 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1179853801 + 132848676 = 34349^2 + 11526^2 .

It is an emirp because it is prime and its reverse (7742072131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1312702477 - 2²³ = 1304313869 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312702427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656351238 + 656351239.

It is an arithmetic number, because the mean of its divisors is an integer number (656351239).

Almost surely, 2^1312702477 is an apocalyptic number.

It is an amenable number.

1312702477 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312702477 is an equidigital number, since it uses as much as digits as its factorization.

1312702477 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16464, while the sum is 34.

The square root of 1312702477 is about 36231.2362057935. The cubic root of 1312702477 is about 1094.9360837848.

The spelling of 1312702477 in words is "one billion, three hundred twelve million, seven hundred two thousand, four hundred seventy-seven".