1143262113 has 32 divisors (see below), whose sum is σ = 1840177152. Its totient is φ = 617500800.

The previous prime is 1143262111. The next prime is 1143262139. The reversal of 1143262113 is 3112623411.

It is a happy number.

It is not a de Polignac number, because 1143262113 - 2¹ = 1143262111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1143262111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7573 + ... + 48413.

It is an arithmetic number, because the mean of its divisors is an integer number (57505536).

Almost surely, 2^1143262113 is an apocalyptic number.

It is an amenable number.

1143262113 is a deficient number, since it is larger than the sum of its proper divisors (696915039).

1143262113 is a wasteful number, since it uses less digits than its factorization.

1143262113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40925.

The product of its digits is 864, while the sum is 24.

The square root of 1143262113 is about 33812.1592478209. The cubic root of 1143262113 is about 1045.6393950288.

Adding to 1143262113 its reverse (3112623411), we get a palindrome (4255885524).

The spelling of 1143262113 in words is "one billion, one hundred forty-three million, two hundred sixty-two thousand, one hundred thirteen".