242305541 has 2 divisors, whose sum is σ = 242305542. Its totient is φ = 242305540.

The previous prime is 242305523. The next prime is 242305549. The reversal of 242305541 is 145503242.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 160022500 + 82283041 = 12650^2 + 9071^2 .

It is a cyclic number.

It is not a de Polignac number, because 242305541 - 2²⁶ = 175196677 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242305541.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242305549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121152770 + 121152771.

It is an arithmetic number, because the mean of its divisors is an integer number (121152771).

Almost surely, 2^242305541 is an apocalyptic number.

It is an amenable number.

242305541 is a deficient number, since it is larger than the sum of its proper divisors (1).

242305541 is an equidigital number, since it uses as much as digits as its factorization.

242305541 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 242305541 is about 15566.1665479976. The cubic root of 242305541 is about 623.4301217264.

Adding to 242305541 its reverse (145503242), we get a palindrome (387808783).

The spelling of 242305541 in words is "two hundred forty-two million, three hundred five thousand, five hundred forty-one".