99249 has 4 divisors (see below), whose sum is σ = 132336. Its totient is φ = 66164.

The previous prime is 99241. The next prime is 99251. The reversal of 99249 is 94299.

It is a happy number.

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 99249 - 2³ = 99241 is a prime.

It is a D-number.

It is a plaindrome in base 5.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (99241) 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, 16539 + ... + 16544.

It is an arithmetic number, because the mean of its divisors is an integer number (33084).

2⁹⁹²⁴⁹ is an apocalyptic number.

It is an amenable number.

99249 is a deficient number, since it is larger than the sum of its proper divisors (33087).

99249 is a wasteful number, since it uses less digits than its factorization.

99249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33086.

The product of its digits is 5832, while the sum is 33.

The square root of 99249 is about 315.0380929348. The cubic root of 99249 is about 46.2994018025.

Subtracting from 99249 its reverse (94299), we obtain a triangular number (4950 = T₉₉).

The spelling of 99249 in words is "ninety-nine thousand, two hundred forty-nine".