242544413 has 2 divisors, whose sum is σ = 242544414. Its totient is φ = 242544412.

The previous prime is 242544409. The next prime is 242544469. The reversal of 242544413 is 314445242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 227466724 + 15077689 = 15082^2 + 3883^2 .

It is a cyclic number.

It is not a de Polignac number, because 242544413 - 2² = 242544409 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242544613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121272206 + 121272207.

It is an arithmetic number, because the mean of its divisors is an integer number (121272207).

Almost surely, 2^242544413 is an apocalyptic number.

It is an amenable number.

242544413 is a deficient number, since it is larger than the sum of its proper divisors (1).

242544413 is an equidigital number, since it uses as much as digits as its factorization.

242544413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15360, while the sum is 29.

The square root of 242544413 is about 15573.8374525998. The cubic root of 242544413 is about 623.6349197535.

Adding to 242544413 its reverse (314445242), we get a palindrome (556989655).

The spelling of 242544413 in words is "two hundred forty-two million, five hundred forty-four thousand, four hundred thirteen".