1313866469 has 2 divisors, whose sum is σ = 1313866470. Its totient is φ = 1313866468.

The previous prime is 1313866453. The next prime is 1313866487. The reversal of 1313866469 is 9646683131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1171350625 + 142515844 = 34225^2 + 11938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313866469 - 2⁴ = 1313866453 is a prime.

It is a super-2 number, since 2×1313866469² = 3452490196725055922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313866429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656933234 + 656933235.

It is an arithmetic number, because the mean of its divisors is an integer number (656933235).

Almost surely, 2^1313866469 is an apocalyptic number.

It is an amenable number.

1313866469 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313866469 is an equidigital number, since it uses as much as digits as its factorization.

1313866469 is an evil number, because the sum of its binary digits is even.

The product of its digits is 559872, while the sum is 47.

The square root of 1313866469 is about 36247.2960232898. The cubic root of 1313866469 is about 1095.2596199871.

The spelling of 1313866469 in words is "one billion, three hundred thirteen million, eight hundred sixty-six thousand, four hundred sixty-nine".