2531371 has 2 divisors, whose sum is σ = 2531372. Its totient is φ = 2531370.

The previous prime is 2531369. The next prime is 2531377. The reversal of 2531371 is 1731352.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2531371 - 2¹ = 2531369 is a prime.

Together with 2531369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2531377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1265685 + 1265686.

It is an arithmetic number, because the mean of its divisors is an integer number (1265686).

2^2531371 is an apocalyptic number.

2531371 is a deficient number, since it is larger than the sum of its proper divisors (1).

2531371 is an equidigital number, since it uses as much as digits as its factorization.

2531371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630, while the sum is 22.

The square root of 2531371 is about 1591.0282838466. The cubic root of 2531371 is about 136.2862159991.

The spelling of 2531371 in words is "two million, five hundred thirty-one thousand, three hundred seventy-one".