2601601 has 2 divisors, whose sum is σ = 2601602. Its totient is φ = 2601600.

The previous prime is 2601583. The next prime is 2601607. The reversal of 2601601 is 1061062.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1960000 + 641601 = 1400^2 + 801^2 .

It is a cyclic number.

It is not a de Polignac number, because 2601601 - 2⁵ = 2601569 is a prime.

It is not a weakly prime, because it can be changed into another prime (2601607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1300800 + 1300801.

It is an arithmetic number, because the mean of its divisors is an integer number (1300801).

2^2601601 is an apocalyptic number.

It is an amenable number.

2601601 is a deficient number, since it is larger than the sum of its proper divisors (1).

2601601 is an equidigital number, since it uses as much as digits as its factorization.

2601601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 2601601 is about 1612.9479222839. The cubic root of 2601601 is about 137.5351050862.

Adding to 2601601 its reverse (1061062), we get a palindrome (3662663).

The spelling of 2601601 in words is "two million, six hundred one thousand, six hundred one".