4081265 has 8 divisors (see below), whose sum is σ = 4990248. Its totient is φ = 3203200.

The previous prime is 4081261. The next prime is 4081271. The reversal of 4081265 is 5621804.

It can be written as a sum of positive squares in 4 ways, for example, as 2053489 + 2027776 = 1433^2 + 1424^2 .

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

It is not a de Polignac number, because 4081265 - 2² = 4081261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4081261) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7436 + ... + 7965.

It is an arithmetic number, because the mean of its divisors is an integer number (623781).

Almost surely, 2^4081265 is an apocalyptic number.

It is an amenable number.

4081265 is a deficient number, since it is larger than the sum of its proper divisors (908983).

4081265 is a wasteful number, since it uses less digits than its factorization.

4081265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15459.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 4081265 is about 2020.2140975649. The cubic root of 4081265 is about 159.8079074911.

The spelling of 4081265 in words is "four million, eighty-one thousand, two hundred sixty-five".