99980105 has 8 divisors (see below), whose sum is σ = 123218952. Its totient is φ = 77822208.

The previous prime is 99980087. The next prime is 99980123. The reversal of 99980105 is 50108999.

It is an interprime number because it is at equal distance from previous prime (99980087) and next prime (99980123).

It can be written as a sum of positive squares in 4 ways, for example, as 40551424 + 59428681 = 6368^2 + 7709^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 99980105 - 2¹⁰ = 99979081 is a prime.

It is a super-2 number, since 2×99980105² = 19992042791622050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 270032 + ... + 270401.

It is an arithmetic number, because the mean of its divisors is an integer number (15402369).

Almost surely, 2^99980105 is an apocalyptic number.

It is an amenable number.

99980105 is a deficient number, since it is larger than the sum of its proper divisors (23238847).

99980105 is a wasteful number, since it uses less digits than its factorization.

99980105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540475.

The product of its (nonzero) digits is 29160, while the sum is 41.

The square root of 99980105 is about 9999.0052005187. The cubic root of 99980105 is about 464.1280998498.

The spelling of 99980105 in words is "ninety-nine million, nine hundred eighty thousand, one hundred five".