1143153233 has 8 divisors (see below), whose sum is σ = 1182959400. Its totient is φ = 1103372928.

The previous prime is 1143153229. The next prime is 1143153247. The reversal of 1143153233 is 3323513411.

It can be written as a sum of positive squares in 4 ways, for example, as 20367169 + 1122786064 = 4513^2 + 33508^2 .

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 1143153233 - 2² = 1143153229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1143153203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140135 + ... + 148067.

It is an arithmetic number, because the mean of its divisors is an integer number (147869925).

Almost surely, 2^1143153233 is an apocalyptic number.

It is an amenable number.

1143153233 is a deficient number, since it is larger than the sum of its proper divisors (39806167).

1143153233 is an equidigital number, since it uses as much as digits as its factorization.

1143153233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12931.

The product of its digits is 3240, while the sum is 26.

The square root of 1143153233 is about 33810.5491378061. The cubic root of 1143153233 is about 1045.6061997156.

Adding to 1143153233 its reverse (3323513411), we get a palindrome (4466666644).

The spelling of 1143153233 in words is "one billion, one hundred forty-three million, one hundred fifty-three thousand, two hundred thirty-three".