239104289 has 2 divisors, whose sum is σ = 239104290. Its totient is φ = 239104288.

The previous prime is 239104267. The next prime is 239104301. The reversal of 239104289 is 982401932.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 201072400 + 38031889 = 14180^2 + 6167^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-239104289 is a prime.

It is a super-2 number, since 2×239104289² = 114341722036391042, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (239104259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 119552144 + 119552145.

It is an arithmetic number, because the mean of its divisors is an integer number (119552145).

Almost surely, 2^239104289 is an apocalyptic number.

It is an amenable number.

239104289 is a deficient number, since it is larger than the sum of its proper divisors (1).

239104289 is an equidigital number, since it uses as much as digits as its factorization.

239104289 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 239104289 is about 15462.9974131796. The cubic root of 239104289 is about 620.6724312100.

The spelling of 239104289 in words is "two hundred thirty-nine million, one hundred four thousand, two hundred eighty-nine".