1144401233 has 4 divisors (see below), whose sum is σ = 1144517220. Its totient is φ = 1144285248.

The previous prime is 1144401227. The next prime is 1144401253. The reversal of 1144401233 is 3321044411.

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 634183489 + 510217744 = 25183^2 + 22588^2 .

It is a cyclic number.

It is not a de Polignac number, because 1144401233 - 2⁸ = 1144400977 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144401199 and 1144401208.

It is not an unprimeable number, because it can be changed into a prime (1144401253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41660 + ... + 63437.

It is an arithmetic number, because the mean of its divisors is an integer number (286129305).

Almost surely, 2^1144401233 is an apocalyptic number.

It is an amenable number.

1144401233 is a deficient number, since it is larger than the sum of its proper divisors (115987).

1144401233 is a wasteful number, since it uses less digits than its factorization.

1144401233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115986.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1144401233 is about 33828.9998817583. Note that the first 3 decimals coincide. The cubic root of 1144401233 is about 1045.9865634093.

Adding to 1144401233 its reverse (3321044411), we get a palindrome (4465445644).

The spelling of 1144401233 in words is "one billion, one hundred forty-four million, four hundred one thousand, two hundred thirty-three".