1136831 has 2 divisors, whose sum is σ = 1136832. Its totient is φ = 1136830.

The previous prime is 1136819. The next prime is 1136833. The reversal of 1136831 is 1386311.

It is a strong prime.

It is an emirp because it is prime and its reverse (1386311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1136831 - 2⁶ = 1136767 is a prime.

It is a super-2 number, since 2×1136831² = 2584769445122, which contains 22 as substring.

Together with 1136833, it forms a pair of twin primes.

It is a Chen prime.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 1136797 and 1136806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1136833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 568415 + 568416.

It is an arithmetic number, because the mean of its divisors is an integer number (568416).

2^1136831 is an apocalyptic number.

1136831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1136831 is an equidigital number, since it uses as much as digits as its factorization.

1136831 is an evil number, because the sum of its binary digits is even.

The product of its digits is 432, while the sum is 23.

The square root of 1136831 is about 1066.2227722198. Note that the first 3 decimals coincide. The cubic root of 1136831 is about 104.3675052885.

It can be divided in two parts, 113 and 6831, that multiplied together give a triangular number (771903 = T₁₂₄₂).

The spelling of 1136831 in words is "one million, one hundred thirty-six thousand, eight hundred thirty-one".