242230019 has 2 divisors, whose sum is σ = 242230020. Its totient is φ = 242230018.

The previous prime is 242230003. The next prime is 242230039. The reversal of 242230019 is 910032242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242230019 - 2⁴ = 242230003 is a prime.

It is a super-2 number, since 2×242230019² = 117350764209480722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 242229976 and 242230003.

It is not a weakly prime, because it can be changed into another prime (242230039) 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, 121115009 + 121115010.

It is an arithmetic number, because the mean of its divisors is an integer number (121115010).

Almost surely, 2^242230019 is an apocalyptic number.

242230019 is a deficient number, since it is larger than the sum of its proper divisors (1).

242230019 is an equidigital number, since it uses as much as digits as its factorization.

242230019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 242230019 is about 15563.7405208388. The cubic root of 242230019 is about 623.3653445833.

The spelling of 242230019 in words is "two hundred forty-two million, two hundred thirty thousand, nineteen".