112378919 has 2 divisors, whose sum is σ = 112378920. Its totient is φ = 112378918.

The previous prime is 112378913. The next prime is 112378951. The reversal of 112378919 is 919873211.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112378919 is a prime.

It is a super-2 number, since 2×112378919² = 25258042871217122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112378913) 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, 56189459 + 56189460.

It is an arithmetic number, because the mean of its divisors is an integer number (56189460).

Almost surely, 2^112378919 is an apocalyptic number.

112378919 is a deficient number, since it is larger than the sum of its proper divisors (1).

112378919 is an equidigital number, since it uses as much as digits as its factorization.

112378919 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 41.

The square root of 112378919 is about 10600.8923680981. The cubic root of 112378919 is about 482.5714413621.

The spelling of 112378919 in words is "one hundred twelve million, three hundred seventy-eight thousand, nine hundred nineteen".