99919112 has 16 divisors (see below), whose sum is σ = 188169900. Its totient is φ = 49740480.

The previous prime is 99919111. The next prime is 99919117. The reversal of 99919112 is 21191999.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 99720196 + 198916 = 9986^2 + 446^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 99919112.

It is not an unprimeable number, because it can be changed into a prime (99919111) 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, 25439 + ... + 29102.

Almost surely, 2^99919112 is an apocalyptic number.

It is an amenable number.

99919112 is a deficient number, since it is larger than the sum of its proper divisors (88250788).

99919112 is a wasteful number, since it uses less digits than its factorization.

99919112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54776 (or 54772 counting only the distinct ones).

The product of its digits is 13122, while the sum is 41.

The square root of 99919112 is about 9995.9547818105. The cubic root of 99919112 is about 464.0336999899.

The spelling of 99919112 in words is "ninety-nine million, nine hundred nineteen thousand, one hundred twelve".