1135491009 has 16 divisors (see below), whose sum is σ = 1550213952. Its totient is φ = 739081728.

The previous prime is 1135490999. The next prime is 1135491017. The reversal of 1135491009 is 9001945311.

It is not a de Polignac number, because 1135491009 - 2⁸ = 1135490753 is a prime.

It is a super-3 number, since 3×1135491009³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1135491059) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2284 + ... + 47709.

It is an arithmetic number, because the mean of its divisors is an integer number (96888372).

Almost surely, 2^1135491009 is an apocalyptic number.

It is an amenable number.

1135491009 is a deficient number, since it is larger than the sum of its proper divisors (414722943).

1135491009 is a wasteful number, since it uses less digits than its factorization.

1135491009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50176.

The product of its (nonzero) digits is 4860, while the sum is 33.

The square root of 1135491009 is about 33697.0474819382. The cubic root of 1135491009 is about 1043.2648291967.

The spelling of 1135491009 in words is "one billion, one hundred thirty-five million, four hundred ninety-one thousand, nine".