1144513231 has 2 divisors, whose sum is σ = 1144513232. Its totient is φ = 1144513230.

The previous prime is 1144513169. The next prime is 1144513243. The reversal of 1144513231 is 1323154411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1144513231 - 2⁷ = 1144513103 is a prime.

It is a super-2 number, since 2×1144513231² = 2619821071868118722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1144513196 and 1144513205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1144513261) 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 as a sum of consecutive naturals, namely, 572256615 + 572256616.

It is an arithmetic number, because the mean of its divisors is an integer number (572256616).

Almost surely, 2^1144513231 is an apocalyptic number.

1144513231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1144513231 is an equidigital number, since it uses as much as digits as its factorization.

1144513231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 25.

The square root of 1144513231 is about 33830.6551961383. The cubic root of 1144513231 is about 1046.0206844787.

Adding to 1144513231 its reverse (1323154411), we get a palindrome (2467667642).

The spelling of 1144513231 in words is "one billion, one hundred forty-four million, five hundred thirteen thousand, two hundred thirty-one".