4125811 has 4 divisors (see below), whose sum is σ = 4195800. Its totient is φ = 4055824.

The previous prime is 4125787. The next prime is 4125827. The reversal of 4125811 is 1185214.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 4125811 - 2¹⁵ = 4093043 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4125851) 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, 34906 + ... + 35023.

It is an arithmetic number, because the mean of its divisors is an integer number (1048950).

Almost surely, 2^4125811 is an apocalyptic number.

4125811 is a deficient number, since it is larger than the sum of its proper divisors (69989).

4125811 is an equidigital number, since it uses as much as digits as its factorization.

4125811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69988.

The product of its digits is 320, while the sum is 22.

The square root of 4125811 is about 2031.2092457450. The cubic root of 4125811 is about 160.3872261559.

It can be divided in two parts, 41 and 25811, that added together give a palindrome (25852).

The spelling of 4125811 in words is "four million, one hundred twenty-five thousand, eight hundred eleven".