1143156325 has 12 divisors (see below), whose sum is σ = 1447675200. Its totient is φ = 895066160.

The previous prime is 1143156293. The next prime is 1143156331. The reversal of 1143156325 is 5236513411.

It is not a de Polignac number, because 1143156325 - 2⁵ = 1143156293 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 485275 + ... + 487624.

It is an arithmetic number, because the mean of its divisors is an integer number (120639600).

Almost surely, 2^1143156325 is an apocalyptic number.

It is an amenable number.

1143156325 is a deficient number, since it is larger than the sum of its proper divisors (304518875).

1143156325 is an equidigital number, since it uses as much as digits as its factorization.

1143156325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972956 (or 972951 counting only the distinct ones).

The product of its digits is 10800, while the sum is 31.

The square root of 1143156325 is about 33810.5948631490. The cubic root of 1143156325 is about 1045.6071424331.

Adding to 1143156325 its reverse (5236513411), we get a palindrome (6379669736).

The spelling of 1143156325 in words is "one billion, one hundred forty-three million, one hundred fifty-six thousand, three hundred twenty-five".