105245449 has 2 divisors, whose sum is σ = 105245450. Its totient is φ = 105245448.

The previous prime is 105245431. The next prime is 105245461. The reversal of 105245449 is 944542501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 97377424 + 7868025 = 9868^2 + 2805^2 .

It is a cyclic number.

It is not a de Polignac number, because 105245449 - 2⁵ = 105245417 is a prime.

It is a super-2 number, since 2×105245449² = 22153209070423202, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (105245479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52622724 + 52622725.

It is an arithmetic number, because the mean of its divisors is an integer number (52622725).

Almost surely, 2^105245449 is an apocalyptic number.

It is an amenable number.

105245449 is a deficient number, since it is larger than the sum of its proper divisors (1).

105245449 is an equidigital number, since it uses as much as digits as its factorization.

105245449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 105245449 is about 10258.9204597755. The cubic root of 105245449 is about 472.1367161773.

The spelling of 105245449 in words is "one hundred five million, two hundred forty-five thousand, four hundred forty-nine".