1131162653 has 4 divisors (see below), whose sum is σ = 1158752028. Its totient is φ = 1103573280.

The previous prime is 1131162619. The next prime is 1131162671. The reversal of 1131162653 is 3562611311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3562611311 = 7 ⋅508944473.

It can be written as a sum of positive squares in 2 ways, for example, as 533702404 + 597460249 = 23102^2 + 24443^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131162653 - 2³⁰ = 57420829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131162673) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13794626 + ... + 13794707.

It is an arithmetic number, because the mean of its divisors is an integer number (289688007).

Almost surely, 2^1131162653 is an apocalyptic number.

It is an amenable number.

1131162653 is a deficient number, since it is larger than the sum of its proper divisors (27589375).

1131162653 is an equidigital number, since it uses as much as digits as its factorization.

1131162653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27589374.

The product of its digits is 3240, while the sum is 29.

The square root of 1131162653 is about 33632.7616023424. The cubic root of 1131162653 is about 1041.9375410019.

Adding to 1131162653 its reverse (3562611311), we get a palindrome (4693773964).

The spelling of 1131162653 in words is "one billion, one hundred thirty-one million, one hundred sixty-two thousand, six hundred fifty-three".