1113253287 has 16 divisors (see below), whose sum is σ = 1525752288. Its totient is φ = 721710080.

The previous prime is 1113253283. The next prime is 1113253289. The reversal of 1113253287 is 7823523111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1113253287 - 2² = 1113253283 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1113253283) 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, 13014 + ... + 48947.

It is an arithmetic number, because the mean of its divisors is an integer number (95359518).

Almost surely, 2^1113253287 is an apocalyptic number.

1113253287 is a deficient number, since it is larger than the sum of its proper divisors (412499001).

1113253287 is a wasteful number, since it uses less digits than its factorization.

1113253287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62130.

The product of its digits is 10080, while the sum is 33.

The square root of 1113253287 is about 33365.4504989817. The cubic root of 1113253287 is about 1036.4093651994.

Adding to 1113253287 its reverse (7823523111), we get a palindrome (8936776398).

The spelling of 1113253287 in words is "one billion, one hundred thirteen million, two hundred fifty-three thousand, two hundred eighty-seven".