112019997 has 4 divisors (see below), whose sum is σ = 149360000. Its totient is φ = 74679996.

The previous prime is 112019993. The next prime is 112020043. The reversal of 112019997 is 799910211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 112019997 - 2² = 112019993 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112019993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18669997 + ... + 18670002.

It is an arithmetic number, because the mean of its divisors is an integer number (37340000).

Almost surely, 2^112019997 is an apocalyptic number.

It is an amenable number.

112019997 is a deficient number, since it is larger than the sum of its proper divisors (37340003).

112019997 is an equidigital number, since it uses as much as digits as its factorization.

112019997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37340002.

The product of its (nonzero) digits is 10206, while the sum is 39.

The square root of 112019997 is about 10583.9499715371. The cubic root of 112019997 is about 482.0571389938.

The spelling of 112019997 in words is "one hundred twelve million, nineteen thousand, nine hundred ninety-seven".