105054809 has 2 divisors, whose sum is σ = 105054810. Its totient is φ = 105054808.

The previous prime is 105054797. The next prime is 105054821. The reversal of 105054809 is 908450501.

It is a balanced prime because it is at equal distance from previous prime (105054797) and next prime (105054821).

It can be written as a sum of positive squares in only one way, i.e., 77387209 + 27667600 = 8797^2 + 5260^2 .

It is a cyclic number.

It is not a de Polignac number, because 105054809 - 2⁴ = 105054793 is a prime.

It is a super-2 number, since 2×105054809² = 22073025788052962, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (105054839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52527404 + 52527405.

It is an arithmetic number, because the mean of its divisors is an integer number (52527405).

Almost surely, 2^105054809 is an apocalyptic number.

It is an amenable number.

105054809 is a deficient number, since it is larger than the sum of its proper divisors (1).

105054809 is an equidigital number, since it uses as much as digits as its factorization.

105054809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7200, while the sum is 32.

The square root of 105054809 is about 10249.6248224020. The cubic root of 105054809 is about 471.8514701306.

The spelling of 105054809 in words is "one hundred five million, fifty-four thousand, eight hundred nine".