99105100 has 36 divisors (see below), whose sum is σ = 215611200. Its totient is φ = 39540160.

The previous prime is 99105079. The next prime is 99105101. The reversal of 99105100 is 150199.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (99105101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46866 + ... + 48934.

It is an arithmetic number, because the mean of its divisors is an integer number (5989200).

Almost surely, 2^99105100 is an apocalyptic number.

It is an amenable number.

99105100 is an abundant number, since it is smaller than the sum of its proper divisors (116506100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99105100 is a wasteful number, since it uses less digits than its factorization.

99105100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2562 (or 2555 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 99105100 is about 9955.1544438045. The cubic root of 99105100 is about 462.7701465349.

Adding to 99105100 its reverse (150199), we get a palindrome (99255299).

The spelling of 99105100 in words is "ninety-nine million, one hundred five thousand, one hundred".