3121741 has 6 divisors (see below), whose sum is σ = 3631470. Its totient is φ = 2675736.

The previous prime is 3121739. The next prime is 3121747. The reversal of 3121741 is 1471213.

It can be written as a sum of positive squares in only one way, i.e., 2019241 + 1102500 = 1421^2 + 1050^2 .

It is not a de Polignac number, because 3121741 - 2¹ = 3121739 is a prime.

It is a Duffinian number.

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 polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31806 + ... + 31903.

It is an arithmetic number, because the mean of its divisors is an integer number (605245).

Almost surely, 2^3121741 is an apocalyptic number.

It is an amenable number.

3121741 is a deficient number, since it is larger than the sum of its proper divisors (509729).

3121741 is an equidigital number, since it uses as much as digits as its factorization.

3121741 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63723 (or 63716 counting only the distinct ones).

The product of its digits is 168, while the sum is 19.

The square root of 3121741 is about 1766.8449281134. The cubic root of 3121741 is about 146.1500459059.

Adding to 3121741 its reverse (1471213), we get a palindrome (4592954).

The spelling of 3121741 in words is "three million, one hundred twenty-one thousand, seven hundred forty-one".