3121748 has 12 divisors (see below), whose sum is σ = 6243552. Its totient is φ = 1337880.

The previous prime is 3121747. The next prime is 3121771. The reversal of 3121748 is 8471213.

3121748 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

3121748 is an admirable number.

It is a hoax number, since the sum of its digits (26) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3121747) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 55718 + ... + 55773.

It is an arithmetic number, because the mean of its divisors is an integer number (520296).

Almost surely, 2^3121748 is an apocalyptic number.

It is an amenable number.

3121748 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

3121748 is a wasteful number, since it uses less digits than its factorization.

3121748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111502 (or 111500 counting only the distinct ones).

The product of its digits is 1344, while the sum is 26.

The square root of 3121748 is about 1766.8469090445. The cubic root of 3121748 is about 146.1501551451.

The spelling of 3121748 in words is "three million, one hundred twenty-one thousand, seven hundred forty-eight".