3815243 has 2 divisors, whose sum is σ = 3815244. Its totient is φ = 3815242.

The previous prime is 3815221. The next prime is 3815249. The reversal of 3815243 is 3425183.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3815243 - 2⁶ = 3815179 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (3815249) 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, 1907621 + 1907622.

It is an arithmetic number, because the mean of its divisors is an integer number (1907622).

Almost surely, 2^3815243 is an apocalyptic number.

3815243 is a deficient number, since it is larger than the sum of its proper divisors (1).

3815243 is an equidigital number, since it uses as much as digits as its factorization.

3815243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2880, while the sum is 26.

The square root of 3815243 is about 1953.2647030037. The cubic root of 3815243 is about 156.2574507380.

The spelling of 3815243 in words is "three million, eight hundred fifteen thousand, two hundred forty-three".