4161005 has 8 divisors (see below), whose sum is σ = 5287032. Its totient is φ = 3132928.

The previous prime is 4160987. The next prime is 4161011. The reversal of 4161005 is 5001614.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 797449 + 3363556 = 893^2 + 1834^2 .

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 4161005 - 2⁶ = 4160941 is a prime.

It is a super-2 number, since 2×4161005² = 34627925220050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24392 + ... + 24561.

It is an arithmetic number, because the mean of its divisors is an integer number (660879).

Almost surely, 2^4161005 is an apocalyptic number.

It is an amenable number.

4161005 is a deficient number, since it is larger than the sum of its proper divisors (1126027).

4161005 is a wasteful number, since it uses less digits than its factorization.

4161005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48975.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 4161005 is about 2039.8541614537. The cubic root of 4161005 is about 160.8419806770.

Adding to 4161005 its reverse (5001614), we get a palindrome (9162619).

The spelling of 4161005 in words is "four million, one hundred sixty-one thousand, five".