1316774999 has 2 divisors, whose sum is σ = 1316775000. Its totient is φ = 1316774998.

The previous prime is 1316774951. The next prime is 1316775007. The reversal of 1316774999 is 9994776131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1316774999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1316774929) 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, 658387499 + 658387500.

It is an arithmetic number, because the mean of its divisors is an integer number (658387500).

Almost surely, 2^1316774999 is an apocalyptic number.

1316774999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1316774999 is an equidigital number, since it uses as much as digits as its factorization.

1316774999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2571912, while the sum is 56.

The square root of 1316774999 is about 36287.3944917515. The cubic root of 1316774999 is about 1096.0672230311.

The spelling of 1316774999 in words is "one billion, three hundred sixteen million, seven hundred seventy-four thousand, nine hundred ninety-nine".