1131522349 has 2 divisors, whose sum is σ = 1131522350. Its totient is φ = 1131522348.

The previous prime is 1131522341. The next prime is 1131522373. The reversal of 1131522349 is 9432251311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1012385124 + 119137225 = 31818^2 + 10915^2 .

It is a cyclic number.

It is not a de Polignac number, because 1131522349 - 2³ = 1131522341 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1131522349.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1131522341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565761174 + 565761175.

It is an arithmetic number, because the mean of its divisors is an integer number (565761175).

Almost surely, 2^1131522349 is an apocalyptic number.

It is an amenable number.

1131522349 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131522349 is an equidigital number, since it uses as much as digits as its factorization.

1131522349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6480, while the sum is 31.

The square root of 1131522349 is about 33638.1085823802. The cubic root of 1131522349 is about 1042.0479704633.

The spelling of 1131522349 in words is "one billion, one hundred thirty-one million, five hundred twenty-two thousand, three hundred forty-nine".