1145234243 has 2 divisors, whose sum is σ = 1145234244. Its totient is φ = 1145234242.

The previous prime is 1145234213. The next prime is 1145234269. The reversal of 1145234243 is 3424325411.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1145234243 - 2¹⁸ = 1144972099 is a prime.

It is a super-3 number, since 3×1145234243³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (1145234203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 572617121 + 572617122.

It is an arithmetic number, because the mean of its divisors is an integer number (572617122).

Almost surely, 2^1145234243 is an apocalyptic number.

1145234243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1145234243 is an equidigital number, since it uses as much as digits as its factorization.

1145234243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 1145234243 is about 33841.3097116527. The cubic root of 1145234243 is about 1046.2402931668.

Adding to 1145234243 its reverse (3424325411), we get a palindrome (4569559654).

The spelling of 1145234243 in words is "one billion, one hundred forty-five million, two hundred thirty-four thousand, two hundred forty-three".