242354156641 has 2 divisors, whose sum is σ = 242354156642. Its totient is φ = 242354156640.

The previous prime is 242354156633. The next prime is 242354156647. The reversal of 242354156641 is 146651453242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 198545992225 + 43808164416 = 445585^2 + 209304^2 .

It is a cyclic number.

It is not a de Polignac number, because 242354156641 - 2³ = 242354156633 is a prime.

It is not a weakly prime, because it can be changed into another prime (242354156647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121177078320 + 121177078321.

It is an arithmetic number, because the mean of its divisors is an integer number (121177078321).

Almost surely, 2^242354156641 is an apocalyptic number.

It is an amenable number.

242354156641 is a deficient number, since it is larger than the sum of its proper divisors (1).

242354156641 is an equidigital number, since it uses as much as digits as its factorization.

242354156641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691200, while the sum is 43.

The spelling of 242354156641 in words is "two hundred forty-two billion, three hundred fifty-four million, one hundred fifty-six thousand, six hundred forty-one".