105303409 has 2 divisors, whose sum is σ = 105303410. Its totient is φ = 105303408.

The previous prime is 105303403. The next prime is 105303413. The reversal of 105303409 is 904303501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 105165025 + 138384 = 10255^2 + 372^2 .

It is a cyclic number.

It is not a de Polignac number, because 105303409 - 2⁷ = 105303281 is a prime.

It is a super-2 number, since 2×105303409² = 22177615894042562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105303403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52651704 + 52651705.

It is an arithmetic number, because the mean of its divisors is an integer number (52651705).

Almost surely, 2^105303409 is an apocalyptic number.

It is an amenable number.

105303409 is a deficient number, since it is larger than the sum of its proper divisors (1).

105303409 is an equidigital number, since it uses as much as digits as its factorization.

105303409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 105303409 is about 10261.7449295917. The cubic root of 105303409 is about 472.2233708259.

The spelling of 105303409 in words is "one hundred five million, three hundred three thousand, four hundred nine".