112921439 has 2 divisors, whose sum is σ = 112921440. Its totient is φ = 112921438.

The previous prime is 112921411. The next prime is 112921469. The reversal of 112921439 is 934129211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 112921439 - 2²⁰ = 111872863 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112921409) 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, 56460719 + 56460720.

It is an arithmetic number, because the mean of its divisors is an integer number (56460720).

Almost surely, 2^112921439 is an apocalyptic number.

112921439 is a deficient number, since it is larger than the sum of its proper divisors (1).

112921439 is an equidigital number, since it uses as much as digits as its factorization.

112921439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3888, while the sum is 32.

The square root of 112921439 is about 10626.4499716509. The cubic root of 112921439 is about 483.3467483659.

The spelling of 112921439 in words is "one hundred twelve million, nine hundred twenty-one thousand, four hundred thirty-nine".