1145143253 has 2 divisors, whose sum is σ = 1145143254. Its totient is φ = 1145143252.

The previous prime is 1145143231. The next prime is 1145143261. The reversal of 1145143253 is 3523415411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 602113444 + 543029809 = 24538^2 + 23303^2 .

It is a cyclic number.

It is not a de Polignac number, because 1145143253 - 2¹⁸ = 1144881109 is a prime.

It is a super-2 number, since 2×1145143253² = 2622706139782844018, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1145143453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572571626 + 572571627.

It is an arithmetic number, because the mean of its divisors is an integer number (572571627).

Almost surely, 2^1145143253 is an apocalyptic number.

It is an amenable number.

1145143253 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145143253 is an equidigital number, since it uses as much as digits as its factorization.

1145143253 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7200, while the sum is 29.

The square root of 1145143253 is about 33839.9653220863. The cubic root of 1145143253 is about 1046.2125841556.

Adding to 1145143253 its reverse (3523415411), we get a palindrome (4668558664).

The spelling of 1145143253 in words is "one billion, one hundred forty-five million, one hundred forty-three thousand, two hundred fifty-three".