3813081 has 4 divisors (see below), whose sum is σ = 5084112. Its totient is φ = 2542052.

The previous prime is 3813067. The next prime is 3813097. The reversal of 3813081 is 1803183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1803183 = 3 ⋅601061.

It is a cyclic number.

It is not a de Polignac number, because 3813081 - 2⁹ = 3812569 is a prime.

It is a super-2 number, since 2×3813081² = 29079173425122, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3813001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 635511 + ... + 635516.

It is an arithmetic number, because the mean of its divisors is an integer number (1271028).

Almost surely, 2^3813081 is an apocalyptic number.

It is an amenable number.

3813081 is a deficient number, since it is larger than the sum of its proper divisors (1271031).

3813081 is a wasteful number, since it uses less digits than its factorization.

3813081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1271030.

The product of its (nonzero) digits is 576, while the sum is 24.

The square root of 3813081 is about 1952.7111921633. The cubic root of 3813081 is about 156.2279294693.

The spelling of 3813081 in words is "three million, eight hundred thirteen thousand, eighty-one".