1312050469 has 2 divisors, whose sum is σ = 1312050470. Its totient is φ = 1312050468.

The previous prime is 1312050431. The next prime is 1312050473. The reversal of 1312050469 is 9640502131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 989417025 + 322633444 = 31455^2 + 17962^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312050469 - 2⁹ = 1312049957 is a prime.

It is a super-2 number, since 2×1312050469² = 3442952866406239922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1312050469.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1312050419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656025234 + 656025235.

It is an arithmetic number, because the mean of its divisors is an integer number (656025235).

Almost surely, 2^1312050469 is an apocalyptic number.

It is an amenable number.

1312050469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1312050469 is an equidigital number, since it uses as much as digits as its factorization.

1312050469 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 1312050469 is about 36222.2372169362. The cubic root of 1312050469 is about 1094.7547719926.

The spelling of 1312050469 in words is "one billion, three hundred twelve million, fifty thousand, four hundred sixty-nine".