1145223433 has 4 divisors (see below), whose sum is σ = 1155730180. Its totient is φ = 1134716688.

The previous prime is 1145223407. The next prime is 1145223451. The reversal of 1145223433 is 3343225411.

It is a happy number.

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 682672384 + 462551049 = 26128^2 + 21507^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145223433 - 2⁹ = 1145222921 is a prime.

It is a super-2 number, since 2×1145223433² = 2623073422984610978, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1145223403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5253210 + ... + 5253427.

It is an arithmetic number, because the mean of its divisors is an integer number (288932545).

Almost surely, 2^1145223433 is an apocalyptic number.

It is an amenable number.

1145223433 is a deficient number, since it is larger than the sum of its proper divisors (10506747).

1145223433 is a wasteful number, since it uses less digits than its factorization.

1145223433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10506746.

The product of its digits is 8640, while the sum is 28.

The square root of 1145223433 is about 33841.1499952351. The cubic root of 1145223433 is about 1046.2370012949.

Adding to 1145223433 its reverse (3343225411), we get a palindrome (4488448844).

The spelling of 1145223433 in words is "one billion, one hundred forty-five million, two hundred twenty-three thousand, four hundred thirty-three".