3813149 has 2 divisors, whose sum is σ = 3813150. Its totient is φ = 3813148.

The previous prime is 3813143. The next prime is 3813169. The reversal of 3813149 is 9413183.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3667225 + 145924 = 1915^2 + 382^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3813149 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3813143) 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 as a sum of consecutive naturals, namely, 1906574 + 1906575.

It is an arithmetic number, because the mean of its divisors is an integer number (1906575).

Almost surely, 2^3813149 is an apocalyptic number.

It is an amenable number.

3813149 is a deficient number, since it is larger than the sum of its proper divisors (1).

3813149 is an equidigital number, since it uses as much as digits as its factorization.

3813149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 3813149 is about 1952.7286037747. The cubic root of 3813149 is about 156.2288581528.

The spelling of 3813149 in words is "three million, eight hundred thirteen thousand, one hundred forty-nine".