1158233 has 4 divisors (see below), whose sum is σ = 1160628. Its totient is φ = 1155840.

The previous prime is 1158217. The next prime is 1158247. The reversal of 1158233 is 3328511.

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 620944 + 537289 = 788^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 1158233 - 2⁴ = 1158217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1158199 and 1158208.

It is not an unprimeable number, because it can be changed into a prime (1158203) 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, 188 + ... + 1533.

It is an arithmetic number, because the mean of its divisors is an integer number (290157).

2^1158233 is an apocalyptic number.

It is an amenable number.

1158233 is a deficient number, since it is larger than the sum of its proper divisors (2395).

1158233 is an equidigital number, since it uses as much as digits as its factorization.

1158233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2394.

The product of its digits is 720, while the sum is 23.

The square root of 1158233 is about 1076.2123396431. The cubic root of 1158233 is about 105.0183792468.

The spelling of 1158233 in words is "one million, one hundred fifty-eight thousand, two hundred thirty-three".