105449969 has 2 divisors, whose sum is σ = 105449970. Its totient is φ = 105449968.

The previous prime is 105449957. The next prime is 105449977. The reversal of 105449969 is 969944501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98267569 + 7182400 = 9913^2 + 2680^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105449969 is a prime.

It is a super-2 number, since 2×105449969² = 22239391924201922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (105449269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52724984 + 52724985.

It is an arithmetic number, because the mean of its divisors is an integer number (52724985).

Almost surely, 2^105449969 is an apocalyptic number.

It is an amenable number.

105449969 is a deficient number, since it is larger than the sum of its proper divisors (1).

105449969 is an equidigital number, since it uses as much as digits as its factorization.

105449969 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 349920, while the sum is 47.

The square root of 105449969 is about 10268.8835323028. The cubic root of 105449969 is about 472.4423475098.

The spelling of 105449969 in words is "one hundred five million, four hundred forty-nine thousand, nine hundred sixty-nine".