104142239 has 2 divisors, whose sum is σ = 104142240. Its totient is φ = 104142238.

The previous prime is 104142223. The next prime is 104142251. The reversal of 104142239 is 932241401.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 104142239 - 2⁴ = 104142223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (104144239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52071119 + 52071120.

It is an arithmetic number, because the mean of its divisors is an integer number (52071120).

Almost surely, 2^104142239 is an apocalyptic number.

104142239 is a deficient number, since it is larger than the sum of its proper divisors (1).

104142239 is an equidigital number, since it uses as much as digits as its factorization.

104142239 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 104142239 is about 10205.0104850510. The cubic root of 104142239 is about 470.4812318620.

The spelling of 104142239 in words is "one hundred four million, one hundred forty-two thousand, two hundred thirty-nine".