1314411991 has 2 divisors, whose sum is σ = 1314411992. Its totient is φ = 1314411990.

The previous prime is 1314411953. The next prime is 1314412019. The reversal of 1314411991 is 1991144131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1314411991 - 2⁹ = 1314411479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1314411911) 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, 657205995 + 657205996.

It is an arithmetic number, because the mean of its divisors is an integer number (657205996).

Almost surely, 2^1314411991 is an apocalyptic number.

1314411991 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314411991 is an equidigital number, since it uses as much as digits as its factorization.

1314411991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 34.

The square root of 1314411991 is about 36254.8202450378. The cubic root of 1314411991 is about 1095.4111842337.

The spelling of 1314411991 in words is "one billion, three hundred fourteen million, four hundred eleven thousand, nine hundred ninety-one".