1143212325 has 12 divisors (see below), whose sum is σ = 1890111168. Its totient is φ = 609713200.

The previous prime is 1143212321. The next prime is 1143212333. The reversal of 1143212325 is 5232123411.

It is not a de Polignac number, because 1143212325 - 2² = 1143212321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1143212295 and 1143212304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143212321) 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, 7621341 + ... + 7621490.

It is an arithmetic number, because the mean of its divisors is an integer number (157509264).

Almost surely, 2^1143212325 is an apocalyptic number.

1143212325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143212325 is a deficient number, since it is larger than the sum of its proper divisors (746898843).

1143212325 is a wasteful number, since it uses less digits than its factorization.

1143212325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15242844 (or 15242839 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 1143212325 is about 33811.4229957865. The cubic root of 1143212325 is about 1045.6242159346.

Adding to 1143212325 its reverse (5232123411), we get a palindrome (6375335736).

The spelling of 1143212325 in words is "one billion, one hundred forty-three million, two hundred twelve thousand, three hundred twenty-five".