2101065 has 8 divisors (see below), whose sum is σ = 3361728. Its totient is φ = 1120560.

The previous prime is 2101061. The next prime is 2101067. The reversal of 2101065 is 5601012.

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

It is not a de Polignac number, because 2101065 - 2² = 2101061 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 140071 = 2101065 / (2 + 1 + 0 + 1 + 0 + 6 + 5).

It is not an unprimeable number, because it can be changed into a prime (2101061) 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, 70021 + ... + 70050.

It is an arithmetic number, because the mean of its divisors is an integer number (420216).

2^2101065 is an apocalyptic number.

It is an amenable number.

2101065 is a deficient number, since it is larger than the sum of its proper divisors (1260663).

2101065 is a wasteful number, since it uses less digits than its factorization.

2101065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140079.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 2101065 is about 1449.5050879524. The cubic root of 2101065 is about 128.0795607261.

Adding to 2101065 its reverse (5601012), we get a palindrome (7702077).

It can be divided in two parts, 210 and 1065, that added together give a triangular number (1275 = T₅₀).

The spelling of 2101065 in words is "two million, one hundred one thousand, sixty-five".