4051813 has 2 divisors, whose sum is σ = 4051814. Its totient is φ = 4051812.

The previous prime is 4051781. The next prime is 4051819. The reversal of 4051813 is 3181504.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3247204 + 804609 = 1802^2 + 897^2 .

It is a cyclic number.

It is not a de Polignac number, because 4051813 - 2⁵ = 4051781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4051819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2025906 + 2025907.

It is an arithmetic number, because the mean of its divisors is an integer number (2025907).

Almost surely, 2^4051813 is an apocalyptic number.

It is an amenable number.

4051813 is a deficient number, since it is larger than the sum of its proper divisors (1).

4051813 is an equidigital number, since it uses as much as digits as its factorization.

4051813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 4051813 is about 2012.9115728218. The cubic root of 4051813 is about 159.4225670141.

The spelling of 4051813 in words is "four million, fifty-one thousand, eight hundred thirteen".