1314129391 has 2 divisors, whose sum is σ = 1314129392. Its totient is φ = 1314129390.

The previous prime is 1314129389. The next prime is 1314129409. The reversal of 1314129391 is 1939214131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1314129391 - 2¹ = 1314129389 is a prime.

Together with 1314129389, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1314120391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 657064695 + 657064696.

It is an arithmetic number, because the mean of its divisors is an integer number (657064696).

Almost surely, 2^1314129391 is an apocalyptic number.

1314129391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1314129391 is an equidigital number, since it uses as much as digits as its factorization.

1314129391 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 34.

The square root of 1314129391 is about 36250.9226227416. The cubic root of 1314129391 is about 1095.3326737436.

The spelling of 1314129391 in words is "one billion, three hundred fourteen million, one hundred twenty-nine thousand, three hundred ninety-one".