1313911 has 2 divisors, whose sum is σ = 1313912. Its totient is φ = 1313910.

The previous prime is 1313899. The next prime is 1313929. The reversal of 1313911 is 1193131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (1193131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1313911 - 2¹⁹ = 789623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1313311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656955 + 656956.

It is an arithmetic number, because the mean of its divisors is an integer number (656956).

2^1313911 is an apocalyptic number.

1313911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313911 is an equidigital number, since it uses as much as digits as its factorization.

1313911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 81, while the sum is 19.

The square root of 1313911 is about 1146.2595692076. The cubic root of 1313911 is about 109.5271993760.

It can be divided in two parts, 13 and 13911, that added together give a square (13924 = 118²).

The spelling of 1313911 in words is "one million, three hundred thirteen thousand, nine hundred eleven".