2519161 has 2 divisors, whose sum is σ = 2519162. Its totient is φ = 2519160.

The previous prime is 2519159. The next prime is 2519171. The reversal of 2519161 is 1619152.

2519161 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2499561 + 19600 = 1581^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 2519161 - 2¹ = 2519159 is a prime.

Together with 2519159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2519131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1259580 + 1259581.

It is an arithmetic number, because the mean of its divisors is an integer number (1259581).

2^2519161 is an apocalyptic number.

It is an amenable number.

2519161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2519161 is an equidigital number, since it uses as much as digits as its factorization.

2519161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 540, while the sum is 25.

The square root of 2519161 is about 1587.1865044789. The cubic root of 2519161 is about 136.0667384383.

Subtracting from 2519161 its reverse (1619152), we obtain a palindrome (900009).

It can be divided in two parts, 25191 and 61, that added together give a palindrome (25252).

The spelling of 2519161 in words is "two million, five hundred nineteen thousand, one hundred sixty-one".