105489193 has 2 divisors, whose sum is σ = 105489194. Its totient is φ = 105489192.

The previous prime is 105489179. The next prime is 105489217. The reversal of 105489193 is 391984501.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 70761744 + 34727449 = 8412^2 + 5893^2 .

It is a cyclic number.

It is not a de Polignac number, because 105489193 - 2⁹ = 105488681 is a prime.

It is a super-2 number, since 2×105489193² = 22255939679582498, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105489143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52744596 + 52744597.

It is an arithmetic number, because the mean of its divisors is an integer number (52744597).

Almost surely, 2^105489193 is an apocalyptic number.

It is an amenable number.

105489193 is a deficient number, since it is larger than the sum of its proper divisors (1).

105489193 is an equidigital number, since it uses as much as digits as its factorization.

105489193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 105489193 is about 10270.7932020852. The cubic root of 105489193 is about 472.5009180390.

The spelling of 105489193 in words is "one hundred five million, four hundred eighty-nine thousand, one hundred ninety-three".