99981195 has 8 divisors (see below), whose sum is σ = 159969936. Its totient is φ = 53323296.

The previous prime is 99981181. The next prime is 99981221. The reversal of 99981195 is 59118999.

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

It is not a de Polignac number, because 99981195 - 2⁴ = 99981179 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3332692 + ... + 3332721.

It is an arithmetic number, because the mean of its divisors is an integer number (19996242).

Almost surely, 2^99981195 is an apocalyptic number.

99981195 is a deficient number, since it is larger than the sum of its proper divisors (59988741).

99981195 is a wasteful number, since it uses less digits than its factorization.

99981195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6665421.

The product of its digits is 262440, while the sum is 51.

The square root of 99981195 is about 9999.0597057923. The cubic root of 99981195 is about 464.1297865113.

The spelling of 99981195 in words is "ninety-nine million, nine hundred eighty-one thousand, one hundred ninety-five".