1135540019 has 4 divisors (see below), whose sum is σ = 1154786520. Its totient is φ = 1116293520.

The previous prime is 1135540009. The next prime is 1135540031. The reversal of 1135540019 is 9100455311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1135540019 is a prime.

It is a super-2 number, since 2×1135540019² = 2578902269501040722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1135539973 and 1135540000.

It is not an unprimeable number, because it can be changed into a prime (1135540009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9623162 + ... + 9623279.

It is an arithmetic number, because the mean of its divisors is an integer number (288696630).

Almost surely, 2^1135540019 is an apocalyptic number.

1135540019 is a deficient number, since it is larger than the sum of its proper divisors (19246501).

1135540019 is an equidigital number, since it uses as much as digits as its factorization.

1135540019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19246500.

The product of its (nonzero) digits is 2700, while the sum is 29.

The square root of 1135540019 is about 33697.7746891393. The cubic root of 1135540019 is about 1043.2798387604.

The spelling of 1135540019 in words is "one billion, one hundred thirty-five million, five hundred forty thousand, nineteen".