1136811243 has 16 divisors (see below), whose sum is σ = 1536796800. Its totient is φ = 747383424.

The previous prime is 1136811229. The next prime is 1136811259. The reversal of 1136811243 is 3421186311.

It is not a de Polignac number, because 1136811243 - 2¹³ = 1136803051 is a prime.

It is a super-2 number, since 2×1136811243² = 2584679604422410098, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1136811243.

It is not an unprimeable number, because it can be changed into a prime (1136811293) 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, 143808 + ... + 151506.

It is an arithmetic number, because the mean of its divisors is an integer number (96049800).

Almost surely, 2^1136811243 is an apocalyptic number.

1136811243 is a deficient number, since it is larger than the sum of its proper divisors (399985557).

1136811243 is an equidigital number, since it uses as much as digits as its factorization.

1136811243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8378.

The product of its digits is 3456, while the sum is 30.

The square root of 1136811243 is about 33716.6315488365. The cubic root of 1136811243 is about 1043.6690068363.

Adding to 1136811243 its reverse (3421186311), we get a palindrome (4557997554).

The spelling of 1136811243 in words is "one billion, one hundred thirty-six million, eight hundred eleven thousand, two hundred forty-three".