2612161 has 4 divisors (see below), whose sum is σ = 2649024. Its totient is φ = 2575300.

The previous prime is 2612143. The next prime is 2612167. The reversal of 2612161 is 1612162.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2612161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2612167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18325 + ... + 18466.

It is an arithmetic number, because the mean of its divisors is an integer number (662256).

2^2612161 is an apocalyptic number.

It is an amenable number.

2612161 is a deficient number, since it is larger than the sum of its proper divisors (36863).

2612161 is an equidigital number, since it uses as much as digits as its factorization.

2612161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36862.

The product of its digits is 144, while the sum is 19.

The square root of 2612161 is about 1616.2181164682. The cubic root of 2612161 is about 137.7209406611.

Subtracting from 2612161 its reverse (1612162), we obtain a palindrome (999999).

The spelling of 2612161 in words is "two million, six hundred twelve thousand, one hundred sixty-one".