1158313 has 4 divisors (see below), whose sum is σ = 1247428. Its totient is φ = 1069200.

The previous prime is 1158307. The next prime is 1158317. The reversal of 1158313 is 3138511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 82944 + 1075369 = 288^2 + 1037^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158313 - 2¹⁷ = 1027241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1158317) 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, 44538 + ... + 44563.

It is an arithmetic number, because the mean of its divisors is an integer number (311857).

2^1158313 is an apocalyptic number.

1158313 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1158313 is a deficient number, since it is larger than the sum of its proper divisors (89115).

1158313 is an equidigital number, since it uses as much as digits as its factorization.

1158313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89114.

The product of its digits is 360, while the sum is 22.

The square root of 1158313 is about 1076.2495063878. The cubic root of 1158313 is about 105.0207970899.

The spelling of 1158313 in words is "one million, one hundred fifty-eight thousand, three hundred thirteen".