242192887 has 2 divisors, whose sum is σ = 242192888. Its totient is φ = 242192886.

The previous prime is 242192879. The next prime is 242192917. The reversal of 242192887 is 788291242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242192887 - 2³ = 242192879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242192287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121096443 + 121096444.

It is an arithmetic number, because the mean of its divisors is an integer number (121096444).

Almost surely, 2^242192887 is an apocalyptic number.

242192887 is a deficient number, since it is larger than the sum of its proper divisors (1).

242192887 is an equidigital number, since it uses as much as digits as its factorization.

242192887 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129024, while the sum is 43.

The square root of 242192887 is about 15562.5475742245. The cubic root of 242192887 is about 623.3334905837. Note that the first 3 decimals are identical.

The spelling of 242192887 in words is "two hundred forty-two million, one hundred ninety-two thousand, eight hundred eighty-seven".