242245777 has 2 divisors, whose sum is σ = 242245778. Its totient is φ = 242245776.

The previous prime is 242245739. The next prime is 242245793. The reversal of 242245777 is 777542242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132917841 + 109327936 = 11529^2 + 10456^2 .

It is a cyclic number.

It is not a de Polignac number, because 242245777 - 2¹⁵ = 242213009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242245727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121122888 + 121122889.

It is an arithmetic number, because the mean of its divisors is an integer number (121122889).

Almost surely, 2^242245777 is an apocalyptic number.

It is an amenable number.

242245777 is a deficient number, since it is larger than the sum of its proper divisors (1).

242245777 is an equidigital number, since it uses as much as digits as its factorization.

242245777 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 219520, while the sum is 40.

The square root of 242245777 is about 15564.2467533768. The cubic root of 242245777 is about 623.3788617328.

The spelling of 242245777 in words is "two hundred forty-two million, two hundred forty-five thousand, seven hundred seventy-seven".