3138312 has 32 divisors (see below), whose sum is σ = 8030880. Its totient is φ = 1021440.

The previous prime is 3138299. The next prime is 3138329. The reversal of 3138312 is 2138313.

It is a happy number.

3138312 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 489 + ... + 2552.

It is an arithmetic number, because the mean of its divisors is an integer number (250965).

Almost surely, 2^3138312 is an apocalyptic number.

It is an amenable number.

3138312 is an abundant number, since it is smaller than the sum of its proper divisors (4892568).

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

3138312 is a wasteful number, since it uses less digits than its factorization.

3138312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3093 (or 3089 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

The square root of 3138312 is about 1771.5281538830. The cubic root of 3138312 is about 146.4081902910.

Subtracting from 3138312 its reverse (2138313), we obtain a palindrome (999999).

The spelling of 3138312 in words is "three million, one hundred thirty-eight thousand, three hundred twelve".