99141593 has 4 divisors (see below), whose sum is σ = 99161508. Its totient is φ = 99121680.

The previous prime is 99141583. The next prime is 99141613. The reversal of 99141593 is 39514199.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 39514199 = 103 ⋅383633.

It can be written as a sum of positive squares in 2 ways, for example, as 3356224 + 95785369 = 1832^2 + 9787^2 .

It is a cyclic number.

It is not a de Polignac number, because 99141593 - 2⁶ = 99141529 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99141593.

It is not an unprimeable number, because it can be changed into a prime (99141583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4955 + ... + 14927.

It is an arithmetic number, because the mean of its divisors is an integer number (24790377).

Almost surely, 2^99141593 is an apocalyptic number.

It is an amenable number.

99141593 is a deficient number, since it is larger than the sum of its proper divisors (19915).

99141593 is an equidigital number, since it uses as much as digits as its factorization.

99141593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19914.

The product of its digits is 43740, while the sum is 41.

The square root of 99141593 is about 9956.9871447140. The cubic root of 99141593 is about 462.8269407818.

The spelling of 99141593 in words is "ninety-nine million, one hundred forty-one thousand, five hundred ninety-three".