242899 has 4 divisors (see below), whose sum is σ = 247536. Its totient is φ = 238264.

The previous prime is 242887. The next prime is 242911. The reversal of 242899 is 998242.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (242887) and next prime (242911).

It is a cyclic number.

It is not a de Polignac number, because 242899 - 2⁵ = 242867 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 (242819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2239 + ... + 2344.

It is an arithmetic number, because the mean of its divisors is an integer number (61884).

2²⁴²⁸⁹⁹ is an apocalyptic number.

242899 is a deficient number, since it is larger than the sum of its proper divisors (4637).

242899 is an equidigital number, since it uses as much as digits as its factorization.

242899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4636.

The product of its digits is 10368, while the sum is 34.

The square root of 242899 is about 492.8478467032. The cubic root of 242899 is about 62.3938678776.

The spelling of 242899 in words is "two hundred forty-two thousand, eight hundred ninety-nine".