105091709 has 2 divisors, whose sum is σ = 105091710. Its totient is φ = 105091708.

The previous prime is 105091691. The next prime is 105091747. The reversal of 105091709 is 907190501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56580484 + 48511225 = 7522^2 + 6965^2 .

It is a cyclic number.

It is not a de Polignac number, because 105091709 - 2⁸ = 105091453 is a prime.

It is a super-2 number, since 2×105091709² = 22088534601081362, 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 (105091769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52545854 + 52545855.

It is an arithmetic number, because the mean of its divisors is an integer number (52545855).

Almost surely, 2^105091709 is an apocalyptic number.

It is an amenable number.

105091709 is a deficient number, since it is larger than the sum of its proper divisors (1).

105091709 is an equidigital number, since it uses as much as digits as its factorization.

105091709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2835, while the sum is 32.

The square root of 105091709 is about 10251.4247302509. The cubic root of 105091709 is about 471.9067088556.

The spelling of 105091709 in words is "one hundred five million, ninety-one thousand, seven hundred nine".