1135431097 has 2 divisors, whose sum is σ = 1135431098. Its totient is φ = 1135431096.

The previous prime is 1135431083. The next prime is 1135431131. The reversal of 1135431097 is 7901345311.

It is a happy number.

It is an a-pointer prime, because the next prime (1135431131) can be obtained adding 1135431097 to its sum of digits (34).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1012576041 + 122855056 = 31821^2 + 11084^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135431097 is a prime.

It is not a weakly prime, because it can be changed into another prime (1135431007) 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, 567715548 + 567715549.

It is an arithmetic number, because the mean of its divisors is an integer number (567715549).

Almost surely, 2^1135431097 is an apocalyptic number.

It is an amenable number.

1135431097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135431097 is an equidigital number, since it uses as much as digits as its factorization.

1135431097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 1135431097 is about 33696.1584902493. The cubic root of 1135431097 is about 1043.2464802531.

The spelling of 1135431097 in words is "one billion, one hundred thirty-five million, four hundred thirty-one thousand, ninety-seven".