99141181 has 4 divisors (see below), whose sum is σ = 100821600. Its totient is φ = 97460764.

The previous prime is 99141151. The next prime is 99141197. The reversal of 99141181 is 18114199.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 99141181 - 2⁵ = 99141149 is a prime.

It is a super-2 number, since 2×99141181² = 19657947540149522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99141151) 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, 840121 + ... + 840238.

It is an arithmetic number, because the mean of its divisors is an integer number (25205400).

Almost surely, 2^99141181 is an apocalyptic number.

It is an amenable number.

99141181 is a deficient number, since it is larger than the sum of its proper divisors (1680419).

99141181 is a wasteful number, since it uses less digits than its factorization.

99141181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680418.

The product of its digits is 2592, while the sum is 34.

The square root of 99141181 is about 9956.9664557033. The cubic root of 99141181 is about 462.8262996618.

The spelling of 99141181 in words is "ninety-nine million, one hundred forty-one thousand, one hundred eighty-one".