2131267 has 2 divisors, whose sum is σ = 2131268. Its totient is φ = 2131266.

The previous prime is 2131253. The next prime is 2131271. The reversal of 2131267 is 7621312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131267 is a prime.

It is not a weakly prime, because it can be changed into another prime (2131247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065633 + 1065634.

It is an arithmetic number, because the mean of its divisors is an integer number (1065634).

2^2131267 is an apocalyptic number.

2131267 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131267 is an equidigital number, since it uses as much as digits as its factorization.

2131267 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 504, while the sum is 22.

The square root of 2131267 is about 1459.8859544499. The cubic root of 2131267 is about 128.6903415439.

Adding to 2131267 its reverse (7621312), we get a palindrome (9752579).

The spelling of 2131267 in words is "two million, one hundred thirty-one thousand, two hundred sixty-seven".