1190831 has 2 divisors, whose sum is σ = 1190832. Its totient is φ = 1190830.

The previous prime is 1190821. The next prime is 1190837. The reversal of 1190831 is 1380911.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1190831 - 2¹⁰ = 1189807 is a prime.

It is a super-2 number, since 2×1190831² = 2836156941122, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1190797 and 1190806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1190837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 595415 + 595416.

It is an arithmetic number, because the mean of its divisors is an integer number (595416).

2^1190831 is an apocalyptic number.

1190831 is a deficient number, since it is larger than the sum of its proper divisors (1).

1190831 is an equidigital number, since it uses as much as digits as its factorization.

1190831 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 1190831 is about 1091.2520332169. The cubic root of 1190831 is about 105.9945114044.

The spelling of 1190831 in words is "one million, one hundred ninety thousand, eight hundred thirty-one".