242546321 has 2 divisors, whose sum is σ = 242546322. Its totient is φ = 242546320.

The previous prime is 242546303. The next prime is 242546329. The reversal of 242546321 is 123645242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235315600 + 7230721 = 15340^2 + 2689^2 .

It is a cyclic number.

It is not a de Polignac number, because 242546321 - 2¹⁰ = 242545297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242546329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121273160 + 121273161.

It is an arithmetic number, because the mean of its divisors is an integer number (121273161).

Almost surely, 2^242546321 is an apocalyptic number.

It is an amenable number.

242546321 is a deficient number, since it is larger than the sum of its proper divisors (1).

242546321 is an equidigital number, since it uses as much as digits as its factorization.

242546321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 29.

The square root of 242546321 is about 15573.8987090581. The cubic root of 242546321 is about 623.6365550448.

The spelling of 242546321 in words is "two hundred forty-two million, five hundred forty-six thousand, three hundred twenty-one".