99638141 has 4 divisors (see below), whose sum is σ = 99760032. Its totient is φ = 99516252.

The previous prime is 99638137. The next prime is 99638153. The reversal of 99638141 is 14183699.

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 99638141 - 2² = 99638137 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99638101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 59711 + ... + 61356.

It is an arithmetic number, because the mean of its divisors is an integer number (24940008).

Almost surely, 2^99638141 is an apocalyptic number.

It is an amenable number.

99638141 is a deficient number, since it is larger than the sum of its proper divisors (121891).

99638141 is a wasteful number, since it uses less digits than its factorization.

99638141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121890.

The product of its digits is 46656, while the sum is 41.

The square root of 99638141 is about 9981.8906525768. The cubic root of 99638141 is about 463.5983397929.

The spelling of 99638141 in words is "ninety-nine million, six hundred thirty-eight thousand, one hundred forty-one".