1131195853 has 2 divisors, whose sum is σ = 1131195854. Its totient is φ = 1131195852.

The previous prime is 1131195851. The next prime is 1131195869. The reversal of 1131195853 is 3585911311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993321289 + 137874564 = 31517^2 + 11742^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131195853 - 2¹ = 1131195851 is a prime.

Together with 1131195851, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131195851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565597926 + 565597927.

It is an arithmetic number, because the mean of its divisors is an integer number (565597927).

Almost surely, 2^1131195853 is an apocalyptic number.

It is an amenable number.

1131195853 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131195853 is an equidigital number, since it uses as much as digits as its factorization.

1131195853 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 37.

The square root of 1131195853 is about 33633.2551650892. The cubic root of 1131195853 is about 1041.9477346400.

The spelling of 1131195853 in words is "one billion, one hundred thirty-one million, one hundred ninety-five thousand, eight hundred fifty-three".