2515161 has 16 divisors (see below), whose sum is σ = 3686400. Its totient is φ = 1512720.

The previous prime is 2515159. The next prime is 2515169. The reversal of 2515161 is 1615152.

It is not a de Polignac number, because 2515161 - 2¹ = 2515159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2515169) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6376 + ... + 6758.

It is an arithmetic number, because the mean of its divisors is an integer number (230400).

2^2515161 is an apocalyptic number.

It is an amenable number.

2515161 is a deficient number, since it is larger than the sum of its proper divisors (1171239).

2515161 is a wasteful number, since it uses less digits than its factorization.

2515161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 596.

The product of its digits is 300, while the sum is 21.

The square root of 2515161 is about 1585.9259125192. The cubic root of 2515161 is about 135.9946833273.

Subtracting from 2515161 its reverse (1615152), we obtain a palindrome (900009).

The spelling of 2515161 in words is "two million, five hundred fifteen thousand, one hundred sixty-one".