1313957 has 2 divisors, whose sum is σ = 1313958. Its totient is φ = 1313956.

The previous prime is 1313953. The next prime is 1313959. The reversal of 1313957 is 7593131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 749956 + 564001 = 866^2 + 751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1313957 - 2² = 1313953 is a prime.

Together with 1313959, 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 (1313953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 656978 + 656979.

It is an arithmetic number, because the mean of its divisors is an integer number (656979).

2^1313957 is an apocalyptic number.

It is an amenable number.

1313957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1313957 is an equidigital number, since it uses as much as digits as its factorization.

1313957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2835, while the sum is 29.

The square root of 1313957 is about 1146.2796342952. The cubic root of 1313957 is about 109.5284775428.

The spelling of 1313957 in words is "one million, three hundred thirteen thousand, nine hundred fifty-seven".