2610261 has 24 divisors (see below), whose sum is σ = 3982680. Its totient is φ = 1645056.

The previous prime is 2610259. The next prime is 2610263. The reversal of 2610261 is 1620162.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2610259) and next prime (2610263).

It can be written as a sum of positive squares in 4 ways, for example, as 562500 + 2047761 = 750^2 + 1431^2 .

It is not a de Polignac number, because 2610261 - 2¹ = 2610259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2610263) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18985 + ... + 19121.

It is an arithmetic number, because the mean of its divisors is an integer number (165945).

2^2610261 is an apocalyptic number.

It is an amenable number.

2610261 is a deficient number, since it is larger than the sum of its proper divisors (1372419).

2610261 is a wasteful number, since it uses less digits than its factorization.

2610261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245 (or 242 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 2610261 is about 1615.6302175931. The cubic root of 2610261 is about 137.6875413343.

Subtracting from 2610261 its reverse (1620162), we obtain a palindrome (990099).

The spelling of 2610261 in words is "two million, six hundred ten thousand, two hundred sixty-one".