3813147 has 36 divisors (see below), whose sum is σ = 6280560. Its totient is φ = 2223936.

The previous prime is 3813143. The next prime is 3813149. The reversal of 3813147 is 7413183.

It is not a de Polignac number, because 3813147 - 2² = 3813143 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3813147.

It is not an unprimeable number, because it can be changed into a 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 in 35 ways as a sum of consecutive naturals, for example, 34929 + ... + 35037.

It is an arithmetic number, because the mean of its divisors is an integer number (174460).

Almost surely, 2^3813147 is an apocalyptic number.

3813147 is a deficient number, since it is larger than the sum of its proper divisors (2467413).

3813147 is a wasteful number, since it uses less digits than its factorization.

3813147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 164 (or 148 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 3813147 is about 1952.7280916707. The cubic root of 3813147 is about 156.2288308387.

The spelling of 3813147 in words is "three million, eight hundred thirteen thousand, one hundred forty-seven".