1144453531 has 4 divisors (see below), whose sum is σ = 1232488432. Its totient is φ = 1056418632.

The previous prime is 1144453517. The next prime is 1144453547. The reversal of 1144453531 is 1353544411.

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

It is a cyclic number.

It is not a de Polignac number, because 1144453531 - 2¹⁵ = 1144420763 is a prime.

It is a super-2 number, since 2×1144453531² = 2619547769236735922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1144453493 and 1144453502.

It is not an unprimeable number, because it can be changed into a prime (1144453501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44017431 + ... + 44017456.

It is an arithmetic number, because the mean of its divisors is an integer number (308122108).

Almost surely, 2^1144453531 is an apocalyptic number.

1144453531 is a deficient number, since it is larger than the sum of its proper divisors (88034901).

1144453531 is an equidigital number, since it uses as much as digits as its factorization.

1144453531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88034900.

The product of its digits is 14400, while the sum is 31.

The square root of 1144453531 is about 33829.7728487792. The cubic root of 1144453531 is about 1046.0024966824.

Adding to 1144453531 its reverse (1353544411), we get a palindrome (2497997942).

The spelling of 1144453531 in words is "one billion, one hundred forty-four million, four hundred fifty-three thousand, five hundred thirty-one".