105239252819 has 2 divisors, whose sum is σ = 105239252820. Its totient is φ = 105239252818.

The previous prime is 105239252803. The next prime is 105239252843. The reversal of 105239252819 is 918252932501.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 105239252819 - 2⁴ = 105239252803 is a prime.

It is a super-2 number, since 2×105239252819² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105239254819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52619626409 + 52619626410.

It is an arithmetic number, because the mean of its divisors is an integer number (52619626410).

Almost surely, 2^105239252819 is an apocalyptic number.

105239252819 is a deficient number, since it is larger than the sum of its proper divisors (1).

105239252819 is an equidigital number, since it uses as much as digits as its factorization.

105239252819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 388800, while the sum is 47.

The spelling of 105239252819 in words is "one hundred five billion, two hundred thirty-nine million, two hundred fifty-two thousand, eight hundred nineteen".