2587161 has 4 divisors (see below), whose sum is σ = 3449552. Its totient is φ = 1724772.

The previous prime is 2587159. The next prime is 2587163. The reversal of 2587161 is 1617852.

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 an interprime number because it is at equal distance from previous prime (2587159) and next prime (2587163).

It is not a de Polignac number, because 2587161 - 2¹ = 2587159 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2587163) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 431191 + ... + 431196.

It is an arithmetic number, because the mean of its divisors is an integer number (862388).

2^2587161 is an apocalyptic number.

It is an amenable number.

2587161 is a deficient number, since it is larger than the sum of its proper divisors (862391).

2587161 is an equidigital number, since it uses as much as digits as its factorization.

2587161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862390.

The product of its digits is 3360, while the sum is 30.

The square root of 2587161 is about 1608.4654177196. The cubic root of 2587161 is about 137.2801732594.

The spelling of 2587161 in words is "two million, five hundred eighty-seven thousand, one hundred sixty-one".