242654569 has 2 divisors, whose sum is σ = 242654570. Its totient is φ = 242654568.

The previous prime is 242654557. The next prime is 242654597. The reversal of 242654569 is 965456242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 125148969 + 117505600 = 11187^2 + 10840^2 .

It is a cyclic number.

It is not a de Polignac number, because 242654569 - 2¹⁷ = 242523497 is a prime.

It is a super-2 number, since 2×242654569² = 117762479713151522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242654509) 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, 121327284 + 121327285.

It is an arithmetic number, because the mean of its divisors is an integer number (121327285).

Almost surely, 2^242654569 is an apocalyptic number.

It is an amenable number.

242654569 is a deficient number, since it is larger than the sum of its proper divisors (1).

242654569 is an equidigital number, since it uses as much as digits as its factorization.

242654569 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 43.

The square root of 242654569 is about 15577.3736233038. The cubic root of 242654569 is about 623.7293172152.

The spelling of 242654569 in words is "two hundred forty-two million, six hundred fifty-four thousand, five hundred sixty-nine".