2101641 has 8 divisors (see below), whose sum is σ = 2810784. Its totient is φ = 1396800.

The previous prime is 2101621. The next prime is 2101651. The reversal of 2101641 is 1461012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2101641 - 2⁷ = 2101513 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2101641.

It is not an unprimeable number, because it can be changed into a prime (2101621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330 + ... + 2076.

It is an arithmetic number, because the mean of its divisors is an integer number (351348).

2^2101641 is an apocalyptic number.

It is an amenable number.

2101641 is a deficient number, since it is larger than the sum of its proper divisors (709143).

2101641 is a wasteful number, since it uses less digits than its factorization.

2101641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 2101641 is about 1449.7037628426. The cubic root of 2101641 is about 128.0912638523.

Adding to 2101641 its reverse (1461012), we get a palindrome (3562653).

The spelling of 2101641 in words is "two million, one hundred one thousand, six hundred forty-one".