112291921 has 8 divisors (see below), whose sum is σ = 128420864. Its totient is φ = 96184800.

The previous prime is 112291897. The next prime is 112291931. The reversal of 112291921 is 129192211.

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 112291921 - 2⁷ = 112291793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 112291921.

It is not an unprimeable number, because it can be changed into a prime (112291931) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7696 + ... + 16846.

It is an arithmetic number, because the mean of its divisors is an integer number (16052608).

Almost surely, 2^112291921 is an apocalyptic number.

It is an amenable number.

112291921 is a deficient number, since it is larger than the sum of its proper divisors (16128943).

112291921 is an equidigital number, since it uses as much as digits as its factorization.

112291921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10911.

The product of its digits is 648, while the sum is 28.

The square root of 112291921 is about 10596.7882398395. The cubic root of 112291921 is about 482.4468818542.

The spelling of 112291921 in words is "one hundred twelve million, two hundred ninety-one thousand, nine hundred twenty-one".