4045105 has 8 divisors (see below), whose sum is σ = 4885992. Its totient is φ = 3214848.

The previous prime is 4045103. The next prime is 4045117. The reversal of 4045105 is 5015404.

It can be written as a sum of positive squares in 4 ways, for example, as 312481 + 3732624 = 559^2 + 1932^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4045105 - 2¹ = 4045103 is a prime.

It is a super-2 number, since 2×4045105² = 32725748922050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4045103) 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 in 7 ways as a sum of consecutive naturals, for example, 1792 + ... + 3361.

It is an arithmetic number, because the mean of its divisors is an integer number (610749).

Almost surely, 2^4045105 is an apocalyptic number.

It is an amenable number.

4045105 is a deficient number, since it is larger than the sum of its proper divisors (840887).

4045105 is a wasteful number, since it uses less digits than its factorization.

4045105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5315.

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 4045105 is about 2011.2446395205. The cubic root of 4045105 is about 159.3345407999.

Subtracting 4045105 from its reverse (5015404), we obtain a cube (970299 = 99³).

The spelling of 4045105 in words is "four million, forty-five thousand, one hundred five".