242180039 has 2 divisors, whose sum is σ = 242180040. Its totient is φ = 242180038.

The previous prime is 242180027. The next prime is 242180047. The reversal of 242180039 is 930081242.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242180039 - 2²⁴ = 225402823 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 242179993 and 242180020.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242180539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121090019 + 121090020.

It is an arithmetic number, because the mean of its divisors is an integer number (121090020).

Almost surely, 2^242180039 is an apocalyptic number.

242180039 is a deficient number, since it is larger than the sum of its proper divisors (1).

242180039 is an equidigital number, since it uses as much as digits as its factorization.

242180039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 242180039 is about 15562.1347828632. The cubic root of 242180039 is about 623.3224680603.

The spelling of 242180039 in words is "two hundred forty-two million, one hundred eighty thousand, thirty-nine".