242986841 has 2 divisors, whose sum is σ = 242986842. Its totient is φ = 242986840.

The previous prime is 242986781. The next prime is 242986847. The reversal of 242986841 is 148689242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 174345616 + 68641225 = 13204^2 + 8285^2 .

It is a cyclic number.

It is not a de Polignac number, because 242986841 - 2¹⁸ = 242724697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242986792 and 242986801.

It is not a weakly prime, because it can be changed into another prime (242986847) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121493420 + 121493421.

It is an arithmetic number, because the mean of its divisors is an integer number (121493421).

Almost surely, 2^242986841 is an apocalyptic number.

It is an amenable number.

242986841 is a deficient number, since it is larger than the sum of its proper divisors (1).

242986841 is an equidigital number, since it uses as much as digits as its factorization.

242986841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 221184, while the sum is 44.

The square root of 242986841 is about 15588.0351872839. The cubic root of 242986841 is about 624.0138825875.

The spelling of 242986841 in words is "two hundred forty-two million, nine hundred eighty-six thousand, eight hundred forty-one".