105440705 has 4 divisors (see below), whose sum is σ = 126528852. Its totient is φ = 84352560.

The previous prime is 105440701. The next prime is 105440707. The reversal of 105440705 is 507044501.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507044501 = 5101 ⋅99401.

It can be written as a sum of positive squares in 2 ways, for example, as 71893441 + 33547264 = 8479^2 + 5792^2 .

It is not a de Polignac number, because 105440705 - 2² = 105440701 is a prime.

It is a super-2 number, since 2×105440705² = 22235484541794050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105440701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10544066 + ... + 10544075.

It is an arithmetic number, because the mean of its divisors is an integer number (31632213).

Almost surely, 2^105440705 is an apocalyptic number.

It is an amenable number.

105440705 is a deficient number, since it is larger than the sum of its proper divisors (21088147).

105440705 is an equidigital number, since it uses as much as digits as its factorization.

105440705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21088146.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 105440705 is about 10268.4324509635. The cubic root of 105440705 is about 472.4285120890.

The spelling of 105440705 in words is "one hundred five million, four hundred forty thousand, seven hundred five".