1145143022 has 4 divisors (see below), whose sum is σ = 1717714536. Its totient is φ = 572571510.

The previous prime is 1145143009. The next prime is 1145143033. The reversal of 1145143022 is 2203415411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 2203415411 = 2971 ⋅741641.

It is a super-2 number, since 2×1145143022² = 2622705081670584968, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 286285754 + ... + 286285757.

It is an arithmetic number, because the mean of its divisors is an integer number (429428634).

Almost surely, 2^1145143022 is an apocalyptic number.

1145143022 is a deficient number, since it is larger than the sum of its proper divisors (572571514).

1145143022 is an equidigital number, since it uses as much as digits as its factorization.

1145143022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 572571513.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 1145143022 is about 33839.9619089620. The cubic root of 1145143022 is about 1046.2125138077.

Adding to 1145143022 its reverse (2203415411), we get a palindrome (3348558433).

The spelling of 1145143022 in words is "one billion, one hundred forty-five million, one hundred forty-three thousand, twenty-two".