2531159 has 4 divisors (see below), whose sum is σ = 2574120. Its totient is φ = 2488200.

The previous prime is 2531117. The next prime is 2531167. The reversal of 2531159 is 9511352.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2531159 - 2²⁰ = 1482583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2531189) 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, 21392 + ... + 21509.

It is an arithmetic number, because the mean of its divisors is an integer number (643530).

2^2531159 is an apocalyptic number.

2531159 is a deficient number, since it is larger than the sum of its proper divisors (42961).

2531159 is an equidigital number, since it uses as much as digits as its factorization.

2531159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42960.

The product of its digits is 1350, while the sum is 26.

The square root of 2531159 is about 1590.9616588718. The cubic root of 2531159 is about 136.2824112777.

The spelling of 2531159 in words is "two million, five hundred thirty-one thousand, one hundred fifty-nine".