3818131 has 2 divisors, whose sum is σ = 3818132. Its totient is φ = 3818130.

The previous prime is 3818123. The next prime is 3818137. The reversal of 3818131 is 1318183.

It is a strong prime.

It is an emirp because it is prime and its reverse (1318183) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3818131 - 2³ = 3818123 is a prime.

It is a super-2 number, since 2×3818131² = 29156248666322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 3818096 and 3818105.

It is not a weakly prime, because it can be changed into another prime (3818137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909065 + 1909066.

It is an arithmetic number, because the mean of its divisors is an integer number (1909066).

Almost surely, 2^3818131 is an apocalyptic number.

3818131 is a deficient number, since it is larger than the sum of its proper divisors (1).

3818131 is an equidigital number, since it uses as much as digits as its factorization.

3818131 is an evil number, because the sum of its binary digits is even.

The product of its digits is 576, while the sum is 25.

The square root of 3818131 is about 1954.0038382767. The cubic root of 3818131 is about 156.2968678604.

The spelling of 3818131 in words is "three million, eight hundred eighteen thousand, one hundred thirty-one".