242896187 has 4 divisors (see below), whose sum is σ = 257184216. Its totient is φ = 228608160.

The previous prime is 242896163. The next prime is 242896189. The reversal of 242896187 is 781698242.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 242896187 - 2²⁰ = 241847611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242896189) 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, 7143989 + ... + 7144022.

It is an arithmetic number, because the mean of its divisors is an integer number (64296054).

Almost surely, 2^242896187 is an apocalyptic number.

242896187 is a deficient number, since it is larger than the sum of its proper divisors (14288029).

242896187 is a wasteful number, since it uses less digits than its factorization.

242896187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14288028.

The product of its digits is 387072, while the sum is 47.

The square root of 242896187 is about 15585.1271088817. The cubic root of 242896187 is about 623.9362701666.

The spelling of 242896187 in words is "two hundred forty-two million, eight hundred ninety-six thousand, one hundred eighty-seven".