242307587 has 2 divisors, whose sum is σ = 242307588. Its totient is φ = 242307586.

The previous prime is 242307539. The next prime is 242307601. The reversal of 242307587 is 785703242.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242307587 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242307587.

It is not a weakly prime, because it can be changed into another prime (242307517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121153793 + 121153794.

It is an arithmetic number, because the mean of its divisors is an integer number (121153794).

Almost surely, 2^242307587 is an apocalyptic number.

242307587 is a deficient number, since it is larger than the sum of its proper divisors (1).

242307587 is an equidigital number, since it uses as much as digits as its factorization.

242307587 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 242307587 is about 15566.2322673150. The cubic root of 242307587 is about 623.4318764454.

The spelling of 242307587 in words is "two hundred forty-two million, three hundred seven thousand, five hundred eighty-seven".