242192287 has 2 divisors, whose sum is σ = 242192288. Its totient is φ = 242192286.

The previous prime is 242192281. The next prime is 242192303. The reversal of 242192287 is 782291242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242192287 - 2²³ = 233803679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242192281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121096143 + 121096144.

It is an arithmetic number, because the mean of its divisors is an integer number (121096144).

Almost surely, 2^242192287 is an apocalyptic number.

242192287 is a deficient number, since it is larger than the sum of its proper divisors (1).

242192287 is an equidigital number, since it uses as much as digits as its factorization.

242192287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 242192287 is about 15562.5282971630. The cubic root of 242192287 is about 623.3329758419.

The spelling of 242192287 in words is "two hundred forty-two million, one hundred ninety-two thousand, two hundred eighty-seven".