242281579 has 2 divisors, whose sum is σ = 242281580. Its totient is φ = 242281578.

The previous prime is 242281549. The next prime is 242281591. The reversal of 242281579 is 975182242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242281579 - 2¹⁷ = 242150507 is a prime.

It is not a weakly prime, because it can be changed into another prime (242281549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121140789 + 121140790.

It is an arithmetic number, because the mean of its divisors is an integer number (121140790).

Almost surely, 2^242281579 is an apocalyptic number.

242281579 is a deficient number, since it is larger than the sum of its proper divisors (1).

242281579 is an equidigital number, since it uses as much as digits as its factorization.

242281579 is an evil number, because the sum of its binary digits is even.

The product of its digits is 80640, while the sum is 40.

The square root of 242281579 is about 15565.3968468523. The cubic root of 242281579 is about 623.4095703666.

The spelling of 242281579 in words is "two hundred forty-two million, two hundred eighty-one thousand, five hundred seventy-nine".