2601021 has 4 divisors (see below), whose sum is σ = 3468032. Its totient is φ = 1734012.

The previous prime is 2600977. The next prime is 2601023. The reversal of 2601021 is 1201062.

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 not a de Polignac number, because 2601021 - 2⁶ = 2600957 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2600988 and 2601006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601023) 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, 433501 + ... + 433506.

It is an arithmetic number, because the mean of its divisors is an integer number (867008).

2^2601021 is an apocalyptic number.

It is an amenable number.

2601021 is a deficient number, since it is larger than the sum of its proper divisors (867011).

2601021 is an equidigital number, since it uses as much as digits as its factorization.

2601021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867010.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 2601021 is about 1612.7681172444. The cubic root of 2601021 is about 137.5248836508.

Adding to 2601021 its reverse (1201062), we get a palindrome (3802083).

The spelling of 2601021 in words is "two million, six hundred one thousand, twenty-one".