1135819 has 2 divisors, whose sum is σ = 1135820. Its totient is φ = 1135818.

The previous prime is 1135777. The next prime is 1135831. The reversal of 1135819 is 9185311.

It is a strong prime.

It is an emirp because it is prime and its reverse (9185311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1135819 - 2¹⁷ = 1004747 is a prime.

It is a super-2 number, since 2×1135819² = 2580169601522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1135859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567909 + 567910.

It is an arithmetic number, because the mean of its divisors is an integer number (567910).

2^1135819 is an apocalyptic number.

1135819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135819 is an equidigital number, since it uses as much as digits as its factorization.

1135819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1080, while the sum is 28.

The square root of 1135819 is about 1065.7480940635. The cubic root of 1135819 is about 104.3365269896.

The spelling of 1135819 in words is "one million, one hundred thirty-five thousand, eight hundred nineteen".