1135431149 has 2 divisors, whose sum is σ = 1135431150. Its totient is φ = 1135431148.

The previous prime is 1135431131. The next prime is 1135431151. The reversal of 1135431149 is 9411345311.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 731702500 + 403728649 = 27050^2 + 20093^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135431149 is a prime.

It is a Sophie Germain prime.

Together with 1135431151, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135431169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567715574 + 567715575.

It is an arithmetic number, because the mean of its divisors is an integer number (567715575).

Almost surely, 2^1135431149 is an apocalyptic number.

It is an amenable number.

1135431149 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135431149 is an equidigital number, since it uses as much as digits as its factorization.

1135431149 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 1135431149 is about 33696.1592618506. The cubic root of 1135431149 is about 1043.2464961791.

The spelling of 1135431149 in words is "one billion, one hundred thirty-five million, four hundred thirty-one thousand, one hundred forty-nine".