105215713 has 2 divisors, whose sum is σ = 105215714. Its totient is φ = 105215712.

The previous prime is 105215707. The next prime is 105215723. The reversal of 105215713 is 317512501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104611984 + 603729 = 10228^2 + 777^2 .

It is a cyclic number.

It is not a de Polignac number, because 105215713 - 2¹⁷ = 105084641 is a prime.

It is a super-2 number, since 2×105215713² = 22140692524196738, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105215723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52607856 + 52607857.

It is an arithmetic number, because the mean of its divisors is an integer number (52607857).

Almost surely, 2^105215713 is an apocalyptic number.

It is an amenable number.

105215713 is a deficient number, since it is larger than the sum of its proper divisors (1).

105215713 is an equidigital number, since it uses as much as digits as its factorization.

105215713 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1050, while the sum is 25.

The square root of 105215713 is about 10257.4710820943. The cubic root of 105215713 is about 472.0922462265.

The spelling of 105215713 in words is "one hundred five million, two hundred fifteen thousand, seven hundred thirteen".