242142401 has 2 divisors, whose sum is σ = 242142402. Its totient is φ = 242142400.

The previous prime is 242142379. The next prime is 242142419. The reversal of 242142401 is 104241242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141039376 + 101103025 = 11876^2 + 10055^2 .

It is a cyclic number.

It is not a de Polignac number, because 242142401 - 2¹⁸ = 241880257 is a prime.

It is not a weakly prime, because it can be changed into another prime (242142421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121071200 + 121071201.

It is an arithmetic number, because the mean of its divisors is an integer number (121071201).

Almost surely, 2^242142401 is an apocalyptic number.

It is an amenable number.

242142401 is a deficient number, since it is larger than the sum of its proper divisors (1).

242142401 is an equidigital number, since it uses as much as digits as its factorization.

242142401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 242142401 is about 15560.9254544837. The cubic root of 242142401 is about 623.2901755193.

Adding to 242142401 its reverse (104241242), we get a palindrome (346383643).

The spelling of 242142401 in words is "two hundred forty-two million, one hundred forty-two thousand, four hundred one".