1133146813 has 12 divisors (see below), whose sum is σ = 1188422400. Its totient is φ = 1080165240.

The previous prime is 1133146787. The next prime is 1133146853. The reversal of 1133146813 is 3186413311.

It is a de Polignac number, because none of the positive numbers 2^k-1133146813 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133146853) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55588 + ... + 73186.

It is an arithmetic number, because the mean of its divisors is an integer number (99035200).

Almost surely, 2^1133146813 is an apocalyptic number.

It is an amenable number.

1133146813 is a deficient number, since it is larger than the sum of its proper divisors (55275587).

1133146813 is an equidigital number, since it uses as much as digits as its factorization.

1133146813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17728 (or 17697 counting only the distinct ones).

The product of its digits is 5184, while the sum is 31.

The square root of 1133146813 is about 33662.2461074718. The cubic root of 1133146813 is about 1042.5464022116.

The spelling of 1133146813 in words is "one billion, one hundred thirty-three million, one hundred forty-six thousand, eight hundred thirteen".