1143522655 has 16 divisors (see below), whose sum is σ = 1504512000. Its totient is φ = 827465760.

The previous prime is 1143522631. The next prime is 1143522713. The reversal of 1143522655 is 5562253411.

It is not a de Polignac number, because 1143522655 - 2⁹ = 1143522143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1143522655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41295 + ... + 63184.

It is an arithmetic number, because the mean of its divisors is an integer number (94032000).

Almost surely, 2^1143522655 is an apocalyptic number.

1143522655 is a deficient number, since it is larger than the sum of its proper divisors (360989345).

1143522655 is a wasteful number, since it uses less digits than its factorization.

1143522655 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104694.

The product of its digits is 36000, while the sum is 34.

The square root of 1143522655 is about 33816.0118139322. The cubic root of 1143522655 is about 1045.7188204681.

The spelling of 1143522655 in words is "one billion, one hundred forty-three million, five hundred twenty-two thousand, six hundred fifty-five".