105804493 has 2 divisors, whose sum is σ = 105804494. Its totient is φ = 105804492.

The previous prime is 105804449. The next prime is 105804509. The reversal of 105804493 is 394408501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 89908324 + 15896169 = 9482^2 + 3987^2 .

It is a cyclic number.

It is not a de Polignac number, because 105804493 - 2²¹ = 103707341 is a prime.

It is a super-2 number, since 2×105804493² = 22389181477974098, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105804893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52902246 + 52902247.

It is an arithmetic number, because the mean of its divisors is an integer number (52902247).

Almost surely, 2^105804493 is an apocalyptic number.

It is an amenable number.

105804493 is a deficient number, since it is larger than the sum of its proper divisors (1).

105804493 is an equidigital number, since it uses as much as digits as its factorization.

105804493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 105804493 is about 10286.1310996895. The cubic root of 105804493 is about 472.9712074633.

The spelling of 105804493 in words is "one hundred five million, eight hundred four thousand, four hundred ninety-three".