2162641 has 4 divisors (see below), whose sum is σ = 2329012. Its totient is φ = 1996272.

The previous prime is 2162639. The next prime is 2162647. The reversal of 2162641 is 1462612.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1299600 + 863041 = 1140^2 + 929^2 .

It is a cyclic number.

It is not a de Polignac number, because 2162641 - 2¹ = 2162639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2162647) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83166 + ... + 83191.

It is an arithmetic number, because the mean of its divisors is an integer number (582253).

2^2162641 is an apocalyptic number.

It is an amenable number.

2162641 is a deficient number, since it is larger than the sum of its proper divisors (166371).

2162641 is a wasteful number, since it uses less digits than its factorization.

2162641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166370.

The product of its digits is 576, while the sum is 22.

The square root of 2162641 is about 1470.5920576421. The cubic root of 2162641 is about 129.3187438521.

The spelling of 2162641 in words is "two million, one hundred sixty-two thousand, six hundred forty-one".