1145233 has 4 divisors (see below), whose sum is σ = 1182208. Its totient is φ = 1108260.

The previous prime is 1145227. The next prime is 1145269. The reversal of 1145233 is 3325411.

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: 3325411 = 67 ⋅49633.

It is a cyclic number.

It is not a de Polignac number, because 1145233 - 2⁹ = 1144721 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 1 + 4⁶ + 5⁷ + 2⁷ + 3¹² + 3¹² .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145233.

It is not an unprimeable number, because it can be changed into a prime (1145203) 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, 18441 + ... + 18502.

It is an arithmetic number, because the mean of its divisors is an integer number (295552).

2^1145233 is an apocalyptic number.

It is an amenable number.

1145233 is a deficient number, since it is larger than the sum of its proper divisors (36975).

1145233 is an equidigital number, since it uses as much as digits as its factorization.

1145233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36974.

The product of its digits is 360, while the sum is 19.

The square root of 1145233 is about 1070.1555961635. The cubic root of 1145233 is about 104.6239914648.

It can be divided in two parts, 1145 and 233, that added together give a triangular number (1378 = T₅₂).

The spelling of 1145233 in words is "one million, one hundred forty-five thousand, two hundred thirty-three".