99885145 has 8 divisors (see below), whose sum is σ = 121209480. Its totient is φ = 79009920.

The previous prime is 99885083. The next prime is 99885157. The reversal of 99885145 is 54158899.

It can be written as a sum of positive squares in 4 ways, for example, as 304704 + 99580441 = 552^2 + 9979^2 .

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

It is not a de Polignac number, because 99885145 - 2⁷ = 99885017 is a prime.

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, 111786 + ... + 112675.

It is an arithmetic number, because the mean of its divisors is an integer number (15151185).

Almost surely, 2^99885145 is an apocalyptic number.

It is an amenable number.

99885145 is a deficient number, since it is larger than the sum of its proper divisors (21324335).

99885145 is a wasteful number, since it uses less digits than its factorization.

99885145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224555.

The product of its digits is 518400, while the sum is 49.

The square root of 99885145 is about 9994.2556000935. The cubic root of 99885145 is about 463.9811120557.

The spelling of 99885145 in words is "ninety-nine million, eight hundred eighty-five thousand, one hundred forty-five".