105449719 has 2 divisors, whose sum is σ = 105449720. Its totient is φ = 105449718.

The previous prime is 105449689. The next prime is 105449723. The reversal of 105449719 is 917944501.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105449719 - 2²¹ = 103352567 is a prime.

It is a super-2 number, since 2×105449719² = 22239286474357922, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105449749) 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, 52724859 + 52724860.

It is an arithmetic number, because the mean of its divisors is an integer number (52724860).

Almost surely, 2^105449719 is an apocalyptic number.

105449719 is a deficient number, since it is larger than the sum of its proper divisors (1).

105449719 is an equidigital number, since it uses as much as digits as its factorization.

105449719 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 45360, while the sum is 40.

The square root of 105449719 is about 10268.8713595994. The cubic root of 105449719 is about 472.4419741552.

The spelling of 105449719 in words is "one hundred five million, four hundred forty-nine thousand, seven hundred nineteen".