1145143241 has 8 divisors (see below), whose sum is σ = 1250139744. Its totient is φ = 1040295520.

The previous prime is 1145143231. The next prime is 1145143253. The reversal of 1145143241 is 1423415411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1145143241 - 2²² = 1140948937 is a prime.

It is a super-2 number, since 2×1145143241² = 2622706084815968162, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1145143241.

It is not an unprimeable number, because it can be changed into a prime (1145143231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20780 + ... + 52173.

It is an arithmetic number, because the mean of its divisors is an integer number (156267468).

Almost surely, 2^1145143241 is an apocalyptic number.

1145143241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1145143241 is a deficient number, since it is larger than the sum of its proper divisors (104996503).

1145143241 is a wasteful number, since it uses less digits than its factorization.

1145143241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74391.

The product of its digits is 1920, while the sum is 26.

The square root of 1145143241 is about 33839.9651447811. The cubic root of 1145143241 is about 1046.2125805011.

Adding to 1145143241 its reverse (1423415411), we get a palindrome (2568558652).

The spelling of 1145143241 in words is "one billion, one hundred forty-five million, one hundred forty-three thousand, two hundred forty-one".