1143031345 has 8 divisors (see below), whose sum is σ = 1431274176. Its totient is φ = 874667376.

The previous prime is 1143031321. The next prime is 1143031387. The reversal of 1143031345 is 5431303411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1143031345 - 2¹³ = 1143023153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4969587 + ... + 4969816.

It is an arithmetic number, because the mean of its divisors is an integer number (178909272).

Almost surely, 2^1143031345 is an apocalyptic number.

It is an amenable number.

1143031345 is a deficient number, since it is larger than the sum of its proper divisors (288242831).

1143031345 is an equidigital number, since it uses as much as digits as its factorization.

1143031345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9939431.

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 1143031345 is about 33808.7465754056. The cubic root of 1143031345 is about 1045.5690360253.

Adding to 1143031345 its reverse (5431303411), we get a palindrome (6574334756).

The spelling of 1143031345 in words is "one billion, one hundred forty-three million, thirty-one thousand, three hundred forty-five".