242574259 has 2 divisors, whose sum is σ = 242574260. Its totient is φ = 242574258.

The previous prime is 242574239. The next prime is 242574281. The reversal of 242574259 is 952475242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242574259 - 2¹⁵ = 242541491 is a prime.

It is a super-2 number, since 2×242574259² = 117684542258798162, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242574239) 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 as a sum of consecutive naturals, namely, 121287129 + 121287130.

It is an arithmetic number, because the mean of its divisors is an integer number (121287130).

Almost surely, 2^242574259 is an apocalyptic number.

242574259 is a deficient number, since it is larger than the sum of its proper divisors (1).

242574259 is an equidigital number, since it uses as much as digits as its factorization.

242574259 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 201600, while the sum is 40.

The square root of 242574259 is about 15574.7956326881. The cubic root of 242574259 is about 623.6604989098.

The spelling of 242574259 in words is "two hundred forty-two million, five hundred seventy-four thousand, two hundred fifty-nine".