3818137 has 2 divisors, whose sum is σ = 3818138. Its totient is φ = 3818136.

The previous prime is 3818131. The next prime is 3818179. The reversal of 3818137 is 7318183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2368521 + 1449616 = 1539^2 + 1204^2 .

It is a cyclic number.

It is not a de Polignac number, because 3818137 - 2¹¹ = 3816089 is a prime.

3818137 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3818099 and 3818108.

It is not a weakly prime, because it can be changed into another prime (3818131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909068 + 1909069.

It is an arithmetic number, because the mean of its divisors is an integer number (1909069).

Almost surely, 2^3818137 is an apocalyptic number.

It is an amenable number.

3818137 is a deficient number, since it is larger than the sum of its proper divisors (1).

3818137 is an equidigital number, since it uses as much as digits as its factorization.

3818137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 31.

The square root of 3818137 is about 1954.0053735852. The cubic root of 3818137 is about 156.2969497312.

The spelling of 3818137 in words is "three million, eight hundred eighteen thousand, one hundred thirty-seven".