99857141 has 12 divisors (see below), whose sum is σ = 107190720. Its totient is φ = 92766960.

The previous prime is 99857129. The next prime is 99857143. The reversal of 99857141 is 14175899.

It is not a de Polignac number, because 99857141 - 2⁶ = 99857077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 99857092 and 99857101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99857143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52436 + ... + 54306.

It is an arithmetic number, because the mean of its divisors is an integer number (8932560).

Almost surely, 2^99857141 is an apocalyptic number.

It is an amenable number.

99857141 is a deficient number, since it is larger than the sum of its proper divisors (7333579).

99857141 is a wasteful number, since it uses less digits than its factorization.

99857141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1996 (or 1943 counting only the distinct ones).

The product of its digits is 90720, while the sum is 44.

The square root of 99857141 is about 9992.8544970894. The cubic root of 99857141 is about 463.9377471104.

The spelling of 99857141 in words is "ninety-nine million, eight hundred fifty-seven thousand, one hundred forty-one".