99143205 has 32 divisors (see below), whose sum is σ = 182248704. Its totient is φ = 45083136.

The previous prime is 99143189. The next prime is 99143221. The reversal of 99143205 is 50234199.

It is an interprime number because it is at equal distance from previous prime (99143189) and next prime (99143221).

It is not a de Polignac number, because 99143205 - 2⁴ = 99143189 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18289 + ... + 23081.

It is an arithmetic number, because the mean of its divisors is an integer number (5695272).

Almost surely, 2^99143205 is an apocalyptic number.

It is an amenable number.

99143205 is a deficient number, since it is larger than the sum of its proper divisors (83105499).

99143205 is a wasteful number, since it uses less digits than its factorization.

99143205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5005.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 99143205 is about 9957.0680925662. The cubic root of 99143205 is about 462.8294492244.

The spelling of 99143205 in words is "ninety-nine million, one hundred forty-three thousand, two hundred five".