1144135236 has 24 divisors (see below), whose sum is σ = 2810157280. Its totient is φ = 361305792.

The previous prime is 1144135229. The next prime is 1144135247. The reversal of 1144135236 is 6325314411.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2508841 + ... + 2509296.

Almost surely, 2^1144135236 is an apocalyptic number.

It is an amenable number.

1144135236 is an abundant number, since it is smaller than the sum of its proper divisors (1666022044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1144135236 is a wasteful number, since it uses less digits than its factorization.

1144135236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5018163 (or 5018161 counting only the distinct ones).

The product of its digits is 8640, while the sum is 30.

The square root of 1144135236 is about 33825.0681595766. The cubic root of 1144135236 is about 1045.9055164131.

Adding to 1144135236 its reverse (6325314411), we get a palindrome (7469449647).

The spelling of 1144135236 in words is "one billion, one hundred forty-four million, one hundred thirty-five thousand, two hundred thirty-six".