112021439 has 2 divisors, whose sum is σ = 112021440. Its totient is φ = 112021438.

The previous prime is 112021411. The next prime is 112021453. The reversal of 112021439 is 934120211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 112021439 - 2⁸ = 112021183 is a prime.

It is equal to p_6412244 and since 112021439 and 6412244 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (112021499) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56010719 + 56010720.

It is an arithmetic number, because the mean of its divisors is an integer number (56010720).

Almost surely, 2^112021439 is an apocalyptic number.

112021439 is a deficient number, since it is larger than the sum of its proper divisors (1).

112021439 is an equidigital number, since it uses as much as digits as its factorization.

112021439 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 112021439 is about 10584.0180933330. The cubic root of 112021439 is about 482.0592074442.

The spelling of 112021439 in words is "one hundred twelve million, twenty-one thousand, four hundred thirty-nine".