242727761 has 2 divisors, whose sum is σ = 242727762. Its totient is φ = 242727760.

The previous prime is 242727731. The next prime is 242727769. The reversal of 242727761 is 167727242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 227859025 + 14868736 = 15095^2 + 3856^2 .

It is a cyclic number.

It is not a de Polignac number, because 242727761 - 2²⁶ = 175618897 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242727769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121363880 + 121363881.

It is an arithmetic number, because the mean of its divisors is an integer number (121363881).

Almost surely, 2^242727761 is an apocalyptic number.

It is an amenable number.

242727761 is a deficient number, since it is larger than the sum of its proper divisors (1).

242727761 is an equidigital number, since it uses as much as digits as its factorization.

242727761 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 38.

The square root of 242727761 is about 15579.7227510633. The cubic root of 242727761 is about 623.7920228233.

The spelling of 242727761 in words is "two hundred forty-two million, seven hundred twenty-seven thousand, seven hundred sixty-one".