1143030225 has 12 divisors (see below), whose sum is σ = 1889810096. Its totient is φ = 609616080.

The previous prime is 1143030169. The next prime is 1143030247. The reversal of 1143030225 is 5220303411.

It is not a de Polignac number, because 1143030225 - 2¹¹ = 1143028177 is a prime.

It is a Duffinian number.

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, 7620127 + ... + 7620276.

Almost surely, 2^1143030225 is an apocalyptic number.

1143030225 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143030225 is a deficient number, since it is larger than the sum of its proper divisors (746779871).

1143030225 is a wasteful number, since it uses less digits than its factorization.

1143030225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15240416 (or 15240411 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 1143030225 is about 33808.7300116405. The cubic root of 1143030225 is about 1045.5686945247.

Adding to 1143030225 its reverse (5220303411), we get a palindrome (6363333636).

The spelling of 1143030225 in words is "one billion, one hundred forty-three million, thirty thousand, two hundred twenty-five".