1156313 has 4 divisors (see below), whose sum is σ = 1183248. Its totient is φ = 1129380.

The previous prime is 1156307. The next prime is 1156327. The reversal of 1156313 is 3136511.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3136511 = 7 ⋅448073.

It is a cyclic number.

It is not a de Polignac number, because 1156313 - 2⁴ = 1156297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1156303) 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, 13403 + ... + 13488.

It is an arithmetic number, because the mean of its divisors is an integer number (295812).

2^1156313 is an apocalyptic number.

It is an amenable number.

1156313 is a deficient number, since it is larger than the sum of its proper divisors (26935).

1156313 is an equidigital number, since it uses as much as digits as its factorization.

1156313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26934.

The product of its digits is 270, while the sum is 20.

The square root of 1156313 is about 1075.3199523863. The cubic root of 1156313 is about 104.9603175823.

The spelling of 1156313 in words is "one million, one hundred fifty-six thousand, three hundred thirteen".