3120641 has 4 divisors (see below), whose sum is σ = 3131952. Its totient is φ = 3109332.

The previous prime is 3120629. The next prime is 3120643. The reversal of 3120641 is 1460213.

3120641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3120641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3120643) 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, 5231 + ... + 5796.

It is an arithmetic number, because the mean of its divisors is an integer number (782988).

Almost surely, 2^3120641 is an apocalyptic number.

It is an amenable number.

3120641 is a deficient number, since it is larger than the sum of its proper divisors (11311).

3120641 is a wasteful number, since it uses less digits than its factorization.

3120641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11310.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 3120641 is about 1766.5336113417. The cubic root of 3120641 is about 146.1328777149.

Adding to 3120641 its reverse (1460213), we get a palindrome (4580854).

The spelling of 3120641 in words is "three million, one hundred twenty thousand, six hundred forty-one".