2615261 has 8 divisors (see below), whose sum is σ = 2977344. Its totient is φ = 2273920.

The previous prime is 2615257. The next prime is 2615279. The reversal of 2615261 is 1625162.

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

It is not a de Polignac number, because 2615261 - 2² = 2615257 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2615281) 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, 4916 + ... + 5421.

It is an arithmetic number, because the mean of its divisors is an integer number (372168).

2^2615261 is an apocalyptic number.

It is an amenable number.

2615261 is a deficient number, since it is larger than the sum of its proper divisors (362083).

2615261 is a wasteful number, since it uses less digits than its factorization.

2615261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10371.

The product of its digits is 720, while the sum is 23.

The square root of 2615261 is about 1617.1768610761. The cubic root of 2615261 is about 137.7753995475.

Subtracting from 2615261 its reverse (1625162), we obtain a palindrome (990099).

The spelling of 2615261 in words is "two million, six hundred fifteen thousand, two hundred sixty-one".