105680539 has 2 divisors, whose sum is σ = 105680540. Its totient is φ = 105680538.

The previous prime is 105680513. The next prime is 105680557. The reversal of 105680539 is 935086501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105680539 - 2⁹ = 105680027 is a prime.

It is a super-2 number, since 2×105680539² = 22336752646661042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 105680498 and 105680507.

It is not a weakly prime, because it can be changed into another prime (105680639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52840269 + 52840270.

It is an arithmetic number, because the mean of its divisors is an integer number (52840270).

Almost surely, 2^105680539 is an apocalyptic number.

105680539 is a deficient number, since it is larger than the sum of its proper divisors (1).

105680539 is an equidigital number, since it uses as much as digits as its factorization.

105680539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32400, while the sum is 37.

The square root of 105680539 is about 10280.1040364385. The cubic root of 105680539 is about 472.7864340170.

The spelling of 105680539 in words is "one hundred five million, six hundred eighty thousand, five hundred thirty-nine".