1143215522 has 24 divisors (see below), whose sum is σ = 1814626800. Its totient is φ = 540087768.

The previous prime is 1143215471. The next prime is 1143215531. The reversal of 1143215522 is 2255123411.

It is a junction number, because it is equal to n+sod(n) for n = 1143215491 and 1143215500.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 300629 + ... + 304407.

It is an arithmetic number, because the mean of its divisors is an integer number (75609450).

Almost surely, 2^1143215522 is an apocalyptic number.

1143215522 is a deficient number, since it is larger than the sum of its proper divisors (671411278).

1143215522 is a wasteful number, since it uses less digits than its factorization.

1143215522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4238 (or 4219 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1143215522 is about 33811.4702726752. The cubic root of 1143215522 is about 1045.6251906318.

Adding to 1143215522 its reverse (2255123411), we get a palindrome (3398338933).

The spelling of 1143215522 in words is "one billion, one hundred forty-three million, two hundred fifteen thousand, five hundred twenty-two".