1311359 has 4 divisors (see below), whose sum is σ = 1498704. Its totient is φ = 1124016.

The previous prime is 1311353. The next prime is 1311367. The reversal of 1311359 is 9531131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9531131 = 23 ⋅414397.

It is a cyclic number.

It is not a de Polignac number, because 1311359 - 2⁸ = 1311103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93662 + ... + 93675.

It is an arithmetic number, because the mean of its divisors is an integer number (374676).

2^1311359 is an apocalyptic number.

1311359 is a deficient number, since it is larger than the sum of its proper divisors (187345).

1311359 is an equidigital number, since it uses as much as digits as its factorization.

1311359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187344.

The product of its digits is 405, while the sum is 23.

The square root of 1311359 is about 1145.1458422402. The cubic root of 1311359 is about 109.4562421158.

The spelling of 1311359 in words is "one million, three hundred eleven thousand, three hundred fifty-nine".