112421505 has 16 divisors (see below), whose sum is σ = 205570944. Its totient is φ = 51392640.

The previous prime is 112421501. The next prime is 112421521. The reversal of 112421505 is 505124211.

It is not a de Polignac number, because 112421505 - 2² = 112421501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (112421501) 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 in 15 ways as a sum of consecutive naturals, for example, 535236 + ... + 535445.

It is an arithmetic number, because the mean of its divisors is an integer number (12848184).

Almost surely, 2^112421505 is an apocalyptic number.

112421505 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

112421505 is a deficient number, since it is larger than the sum of its proper divisors (93149439).

112421505 is a wasteful number, since it uses less digits than its factorization.

112421505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1070696.

The product of its (nonzero) digits is 400, while the sum is 21.

The square root of 112421505 is about 10602.9007823331. The cubic root of 112421505 is about 482.6323904921.

Adding to 112421505 its reverse (505124211), we get a palindrome (617545716).

The spelling of 112421505 in words is "one hundred twelve million, four hundred twenty-one thousand, five hundred five".