112831219 has 2 divisors, whose sum is σ = 112831220. Its totient is φ = 112831218.

The previous prime is 112831189. The next prime is 112831231. The reversal of 112831219 is 912138211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112831219 is a prime.

It is a super-2 number, since 2×112831219² = 25461767962051922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (112831249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56415609 + 56415610.

It is an arithmetic number, because the mean of its divisors is an integer number (56415610).

Almost surely, 2^112831219 is an apocalyptic number.

112831219 is a deficient number, since it is larger than the sum of its proper divisors (1).

112831219 is an equidigital number, since it uses as much as digits as its factorization.

112831219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 28.

The square root of 112831219 is about 10622.2040556562. The cubic root of 112831219 is about 483.2179887528.

It can be divided in two parts, 112831 and 219, that added together give a triangular number (113050 = T₄₇₅).

The spelling of 112831219 in words is "one hundred twelve million, eight hundred thirty-one thousand, two hundred nineteen".