1143316825 has 12 divisors (see below), whose sum is σ = 1620243520. Its totient is φ = 783988560.

The previous prime is 1143316817. The next prime is 1143316829. The reversal of 1143316825 is 5286133411.

It is not a de Polignac number, because 1143316825 - 2³ = 1143316817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143316829) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3266445 + ... + 3266794.

Almost surely, 2^1143316825 is an apocalyptic number.

It is an amenable number.

1143316825 is a deficient number, since it is larger than the sum of its proper divisors (476926695).

1143316825 is an equidigital number, since it uses as much as digits as its factorization.

1143316825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6533256 (or 6533251 counting only the distinct ones).

The product of its digits is 17280, while the sum is 34.

The square root of 1143316825 is about 33812.9682962026. The cubic root of 1143316825 is about 1045.6560748171.

The spelling of 1143316825 in words is "one billion, one hundred forty-three million, three hundred sixteen thousand, eight hundred twenty-five".