99161803 has 4 divisors (see below), whose sum is σ = 106789648. Its totient is φ = 91533960.

The previous prime is 99161791. The next prime is 99161819. The reversal of 99161803 is 30816199.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 99161803 - 2²¹ = 97064651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99161873) 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, 3813903 + ... + 3813928.

It is an arithmetic number, because the mean of its divisors is an integer number (26697412).

Almost surely, 2^99161803 is an apocalyptic number.

99161803 is a deficient number, since it is larger than the sum of its proper divisors (7627845).

99161803 is a wasteful number, since it uses less digits than its factorization.

99161803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7627844.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 99161803 is about 9958.0019582244. The cubic root of 99161803 is about 462.8583877143.

The spelling of 99161803 in words is "ninety-nine million, one hundred sixty-one thousand, eight hundred three".