1135518091 has 2 divisors, whose sum is σ = 1135518092. Its totient is φ = 1135518090.

The previous prime is 1135518029. The next prime is 1135518101. The reversal of 1135518091 is 1908155311.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1135518091 - 2¹³ = 1135509899 is a prime.

It is not a weakly prime, because it can be changed into another prime (1135518191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567759045 + 567759046.

It is an arithmetic number, because the mean of its divisors is an integer number (567759046).

Almost surely, 2^1135518091 is an apocalyptic number.

1135518091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135518091 is an equidigital number, since it uses as much as digits as its factorization.

1135518091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 34.

The square root of 1135518091 is about 33697.4493248376. The cubic root of 1135518091 is about 1043.2731232514.

The spelling of 1135518091 in words is "one billion, one hundred thirty-five million, five hundred eighteen thousand, ninety-one".