1135831 has 2 divisors, whose sum is σ = 1135832. Its totient is φ = 1135830.

The previous prime is 1135819. The next prime is 1135837. The reversal of 1135831 is 1385311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1135831 - 2⁷ = 1135703 is a prime.

It is a super-2 number, since 2×1135831² = 2580224121122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1135837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 567915 + 567916.

It is an arithmetic number, because the mean of its divisors is an integer number (567916).

2^1135831 is an apocalyptic number.

1135831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1135831 is an equidigital number, since it uses as much as digits as its factorization.

1135831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 360, while the sum is 22.

The square root of 1135831 is about 1065.7537238968. The cubic root of 1135831 is about 104.3368944290.

The spelling of 1135831 in words is "one million, one hundred thirty-five thousand, eight hundred thirty-one".