1311646151 has 2 divisors, whose sum is σ = 1311646152. Its totient is φ = 1311646150.

The previous prime is 1311646123. The next prime is 1311646153. The reversal of 1311646151 is 1516461131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311646151 is a prime.

It is a super-2 number, since 2×1311646151² = 3440831250866229602, which contains 22 as substring.

Together with 1311646153, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1311646153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655823075 + 655823076.

It is an arithmetic number, because the mean of its divisors is an integer number (655823076).

Almost surely, 2^1311646151 is an apocalyptic number.

1311646151 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311646151 is an equidigital number, since it uses as much as digits as its factorization.

1311646151 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2160, while the sum is 29.

The square root of 1311646151 is about 36216.6557125309. The cubic root of 1311646151 is about 1094.6423081953.

The spelling of 1311646151 in words is "one billion, three hundred eleven million, six hundred forty-six thousand, one hundred fifty-one".