1143330253 has 16 divisors (see below), whose sum is σ = 1302932736. Its totient is φ = 995258880.

The previous prime is 1143330239. The next prime is 1143330281. The reversal of 1143330253 is 3520333411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1143330253 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143330553) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5700 + ... + 48157.

It is an arithmetic number, because the mean of its divisors is an integer number (81433296).

Almost surely, 2^1143330253 is an apocalyptic number.

1143330253 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1143330253 is a deficient number, since it is larger than the sum of its proper divisors (159602483).

1143330253 is a wasteful number, since it uses less digits than its factorization.

1143330253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53964.

The product of its (nonzero) digits is 3240, while the sum is 25.

The square root of 1143330253 is about 33813.1668584887. The cubic root of 1143330253 is about 1045.6601684665.

Adding to 1143330253 its reverse (3520333411), we get a palindrome (4663663664).

The spelling of 1143330253 in words is "one billion, one hundred forty-three million, three hundred thirty thousand, two hundred fifty-three".