242533549 has 2 divisors, whose sum is σ = 242533550. Its totient is φ = 242533548.

The previous prime is 242533493. The next prime is 242533559. The reversal of 242533549 is 945335242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131905225 + 110628324 = 11485^2 + 10518^2 .

It is a cyclic number.

It is not a de Polignac number, because 242533549 - 2⁹ = 242533037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242533559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121266774 + 121266775.

It is an arithmetic number, because the mean of its divisors is an integer number (121266775).

Almost surely, 2^242533549 is an apocalyptic number.

It is an amenable number.

242533549 is a deficient number, since it is larger than the sum of its proper divisors (1).

242533549 is an equidigital number, since it uses as much as digits as its factorization.

242533549 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 129600, while the sum is 37.

The square root of 242533549 is about 15573.4886586147. The cubic root of 242533549 is about 623.6256083716.

The spelling of 242533549 in words is "two hundred forty-two million, five hundred thirty-three thousand, five hundred forty-nine".