2601895 has 4 divisors (see below), whose sum is σ = 3122280. Its totient is φ = 2081512.

The previous prime is 2601869. The next prime is 2601899. The reversal of 2601895 is 5981062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5981062 = 2 ⋅2990531.

It is a cyclic number.

It is not a de Polignac number, because 2601895 - 2⁹ = 2601383 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2601899) 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, 260185 + ... + 260194.

It is an arithmetic number, because the mean of its divisors is an integer number (780570).

2^2601895 is an apocalyptic number.

2601895 is a deficient number, since it is larger than the sum of its proper divisors (520385).

2601895 is an equidigital number, since it uses as much as digits as its factorization.

2601895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520384.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 2601895 is about 1613.0390571837. The cubic root of 2601895 is about 137.5402857163.

The spelling of 2601895 in words is "two million, six hundred one thousand, eight hundred ninety-five".