1143455325 has 24 divisors (see below), whose sum is σ = 1893860928. Its totient is φ = 608762880.

The previous prime is 1143455317. The next prime is 1143455329. The reversal of 1143455325 is 5235543411.

It is not a de Polignac number, because 1143455325 - 2³ = 1143455317 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143455329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30064 + ... + 56486.

It is an arithmetic number, because the mean of its divisors is an integer number (78910872).

Almost surely, 2^1143455325 is an apocalyptic number.

1143455325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143455325 is a deficient number, since it is larger than the sum of its proper divisors (750405603).

1143455325 is a wasteful number, since it uses less digits than its factorization.

1143455325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27013 (or 27008 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

The square root of 1143455325 is about 33815.0162649673. The cubic root of 1143455325 is about 1045.6982962777.

Adding to 1143455325 its reverse (5235543411), we get a palindrome (6378998736).

The spelling of 1143455325 in words is "one billion, one hundred forty-three million, four hundred fifty-five thousand, three hundred twenty-five".