1133831 has 4 divisors (see below), whose sum is σ = 1183152. Its totient is φ = 1084512.

The previous prime is 1133827. The next prime is 1133837. The reversal of 1133831 is 1383311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1383311 = 151 ⋅9161.

It is a cyclic number.

It is not a de Polignac number, because 1133831 - 2² = 1133827 is a prime.

It is a super-2 number, since 2×1133831² = 2571145473122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133837) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24626 + ... + 24671.

It is an arithmetic number, because the mean of its divisors is an integer number (295788).

2^1133831 is an apocalyptic number.

1133831 is a deficient number, since it is larger than the sum of its proper divisors (49321).

1133831 is an equidigital number, since it uses as much as digits as its factorization.

1133831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49320.

The product of its digits is 216, while the sum is 20.

The square root of 1133831 is about 1064.8150074074. The cubic root of 1133831 is about 104.2756187673.

The spelling of 1133831 in words is "one million, one hundred thirty-three thousand, eight hundred thirty-one".