2102641 has 4 divisors (see below), whose sum is σ = 2106484. Its totient is φ = 2098800.

The previous prime is 2102629. The next prime is 2102647. The reversal of 2102641 is 1462012.

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 848241 + 1254400 = 921^2 + 1120^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2102641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102647) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 930 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (526621).

2^2102641 is an apocalyptic number.

It is an amenable number.

2102641 is a deficient number, since it is larger than the sum of its proper divisors (3843).

2102641 is an equidigital number, since it uses as much as digits as its factorization.

2102641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3842.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2102641 is about 1450.0486198745. The cubic root of 2102641 is about 128.1115767020. Note that the first 3 decimals are identical.

Adding to 2102641 its reverse (1462012), we get a palindrome (3564653).

The spelling of 2102641 in words is "two million, one hundred two thousand, six hundred forty-one".