4081145 has 8 divisors (see below), whose sum is σ = 4936704. Its totient is φ = 3238704.

The previous prime is 4081111. The next prime is 4081153. The reversal of 4081145 is 5411804.

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 4081145 - 2⁸ = 4080889 is a prime.

It is a super-2 number, since 2×4081145² = 33311489022050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 4081145.

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, 2579 + ... + 3848.

It is an arithmetic number, because the mean of its divisors is an integer number (617088).

Almost surely, 2^4081145 is an apocalyptic number.

It is an amenable number.

4081145 is a deficient number, since it is larger than the sum of its proper divisors (855559).

4081145 is a wasteful number, since it uses less digits than its factorization.

4081145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6559.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 4081145 is about 2020.1843975241. The cubic root of 4081145 is about 159.8063412171.

Adding to 4081145 its reverse (5411804), we get a palindrome (9492949).

The spelling of 4081145 in words is "four million, eighty-one thousand, one hundred forty-five".