1144525243 has 4 divisors (see below), whose sum is σ = 1144606680. Its totient is φ = 1144443808.

The previous prime is 1144525237. The next prime is 1144525259. The reversal of 1144525243 is 3425254411.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3425254411 = 1429 ⋅2396959.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1144525243 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1144525043) 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, 13630 + ... + 49747.

It is an arithmetic number, because the mean of its divisors is an integer number (286151670).

Almost surely, 2^1144525243 is an apocalyptic number.

1144525243 is a deficient number, since it is larger than the sum of its proper divisors (81437).

1144525243 is an equidigital number, since it uses as much as digits as its factorization.

1144525243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81436.

The product of its digits is 19200, while the sum is 31.

The square root of 1144525243 is about 33830.8327269667. The cubic root of 1144525243 is about 1046.0243438966.

Adding to 1144525243 its reverse (3425254411), we get a palindrome (4569779654).

The spelling of 1144525243 in words is "one billion, one hundred forty-four million, five hundred twenty-five thousand, two hundred forty-three".