112198906 has 4 divisors (see below), whose sum is σ = 168298362. Its totient is φ = 56099452.

The previous prime is 112198903. The next prime is 112198907. The reversal of 112198906 is 609891211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 609891211 = 127 ⋅4802293.

It can be written as a sum of positive squares in only one way, i.e., 72948681 + 39250225 = 8541^2 + 6265^2 .

It is not an unprimeable number, because it can be changed into a prime (112198903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28049725 + ... + 28049728.

Almost surely, 2^112198906 is an apocalyptic number.

112198906 is a deficient number, since it is larger than the sum of its proper divisors (56099456).

112198906 is an equidigital number, since it uses as much as digits as its factorization.

112198906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56099455.

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 112198906 is about 10592.3985008118. The cubic root of 112198906 is about 482.3136363145.

The spelling of 112198906 in words is "one hundred twelve million, one hundred ninety-eight thousand, nine hundred six".