99100901 has 4 divisors (see below), whose sum is σ = 99300000. Its totient is φ = 98901804.

The previous prime is 99100891. The next prime is 99100927. The reversal of 99100901 is 10900199.

99100901 is nontrivially palindromic in base 16.

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, and also an emirpimes, since its reverse is a distinct semiprime: 10900199 = 43 ⋅253493.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-99100901 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 (99100961) 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 3 ways as a sum of consecutive naturals, for example, 98801 + ... + 99798.

It is an arithmetic number, because the mean of its divisors is an integer number (24825000).

Almost surely, 2^99100901 is an apocalyptic number.

It is an amenable number.

99100901 is a deficient number, since it is larger than the sum of its proper divisors (199099).

99100901 is a wasteful number, since it uses less digits than its factorization.

99100901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199098.

The product of its (nonzero) digits is 729, while the sum is 29.

The square root of 99100901 is about 9954.9435457967. The cubic root of 99100901 is about 462.7636107149.

It can be divided in two parts, 99100 and 901, that added together give a palindrome (100001).

The spelling of 99100901 in words is "ninety-nine million, one hundred thousand, nine hundred one".