11782231 has 2 divisors, whose sum is σ = 11782232. Its totient is φ = 11782230.

The previous prime is 11782219. The next prime is 11782291. The reversal of 11782231 is 13228711.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11782231 - 2⁷ = 11782103 is a prime.

It is a super-2 number, since 2×11782231² = 277641934674722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11782196 and 11782205.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11782291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5891115 + 5891116.

It is an arithmetic number, because the mean of its divisors is an integer number (5891116).

Almost surely, 2^11782231 is an apocalyptic number.

11782231 is a deficient number, since it is larger than the sum of its proper divisors (1).

11782231 is an equidigital number, since it uses as much as digits as its factorization.

11782231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 25.

The square root of 11782231 is about 3432.5254551132. The cubic root of 11782231 is about 227.5494784304.

The spelling of 11782231 in words is "eleven million, seven hundred eighty-two thousand, two hundred thirty-one".