242227819 has 2 divisors, whose sum is σ = 242227820. Its totient is φ = 242227818.

The previous prime is 242227793. The next prime is 242227873. The reversal of 242227819 is 918722242.

242227819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242227819 - 2¹⁷ = 242096747 is a prime.

It is a super-2 number, since 2×242227819² = 117348632594993522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242227619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121113909 + 121113910.

It is an arithmetic number, because the mean of its divisors is an integer number (121113910).

Almost surely, 2^242227819 is an apocalyptic number.

242227819 is a deficient number, since it is larger than the sum of its proper divisors (1).

242227819 is an equidigital number, since it uses as much as digits as its factorization.

242227819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32256, while the sum is 37.

The square root of 242227819 is about 15563.6698435812. The cubic root of 242227819 is about 623.3634573855.

It can be divided in two parts, 24222 and 7819, that added together give a square (32041 = 179²).

The spelling of 242227819 in words is "two hundred forty-two million, two hundred twenty-seven thousand, eight hundred nineteen".