112421405 has 8 divisors (see below), whose sum is σ = 134989152. Its totient is φ = 89881488.

The previous prime is 112421381. The next prime is 112421417. The reversal of 112421405 is 504124211.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 112421405 - 2⁶ = 112421341 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3314 + ... + 15356.

It is an arithmetic number, because the mean of its divisors is an integer number (16873644).

Almost surely, 2^112421405 is an apocalyptic number.

It is an amenable number.

112421405 is a deficient number, since it is larger than the sum of its proper divisors (22567747).

112421405 is a wasteful number, since it uses less digits than its factorization.

112421405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13915.

The product of its (nonzero) digits is 320, while the sum is 20.

The square root of 112421405 is about 10602.8960666414. The cubic root of 112421405 is about 482.6322473900.

Adding to 112421405 its reverse (504124211), we get a palindrome (616545616).

It can be divided in two parts, 11242 and 1405, that multiplied together give a triangular number (15795010 = T₅₆₂₀).

The spelling of 112421405 in words is "one hundred twelve million, four hundred twenty-one thousand, four hundred five".