3145812 has 12 divisors (see below), whose sum is σ = 7340256. Its totient is φ = 1048600.

The previous prime is 3145801. The next prime is 3145817. The reversal of 3145812 is 2185413.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×3145812² = 19792266278688, which contains 22 as substring.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3145817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 131064 + ... + 131087.

It is an arithmetic number, because the mean of its divisors is an integer number (611688).

Almost surely, 2^3145812 is an apocalyptic number.

It is an amenable number.

3145812 is an abundant number, since it is smaller than the sum of its proper divisors (4194444).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3145812 is a wasteful number, since it uses less digits than its factorization.

3145812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262158 (or 262156 counting only the distinct ones).

The product of its digits is 960, while the sum is 24.

The square root of 3145812 is about 1773.6437071746. The cubic root of 3145812 is about 146.5247272344.

The spelling of 3145812 in words is "three million, one hundred forty-five thousand, eight hundred twelve".