105402239 has 2 divisors, whose sum is σ = 105402240. Its totient is φ = 105402238.

The previous prime is 105402203. The next prime is 105402251. The reversal of 105402239 is 932204501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105402239 - 2²⁰ = 104353663 is a prime.

It is a super-2 number, since 2×105402239² = 22219263972426242, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105402259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52701119 + 52701120.

It is an arithmetic number, because the mean of its divisors is an integer number (52701120).

Almost surely, 2^105402239 is an apocalyptic number.

105402239 is a deficient number, since it is larger than the sum of its proper divisors (1).

105402239 is an equidigital number, since it uses as much as digits as its factorization.

105402239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 105402239 is about 10266.5592580962. The cubic root of 105402239 is about 472.3710559562.

The spelling of 105402239 in words is "one hundred five million, four hundred two thousand, two hundred thirty-nine".