3126641 has 6 divisors (see below), whose sum is σ = 3637170. Its totient is φ = 2679936.

The previous prime is 3126559. The next prime is 3126653. The reversal of 3126641 is 1466213.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 1449616 = 1295^2 + 1204^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3126641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3126661) 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, 31856 + ... + 31953.

It is an arithmetic number, because the mean of its divisors is an integer number (606195).

Almost surely, 2^3126641 is an apocalyptic number.

It is an amenable number.

3126641 is a deficient number, since it is larger than the sum of its proper divisors (510529).

3126641 is an equidigital number, since it uses as much as digits as its factorization.

3126641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63823 (or 63816 counting only the distinct ones).

The product of its digits is 864, while the sum is 23.

The square root of 3126641 is about 1768.2310369406. The cubic root of 3126641 is about 146.2264734357.

The spelling of 3126641 in words is "three million, one hundred twenty-six thousand, six hundred forty-one".