2530987 has 2 divisors, whose sum is σ = 2530988. Its totient is φ = 2530986.

The previous prime is 2530981. The next prime is 2530991. The reversal of 2530987 is 7890352.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2530987 - 2¹⁵ = 2498219 is a prime.

It is not a weakly prime, because it can be changed into another prime (2530981) 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 as a sum of consecutive naturals, namely, 1265493 + 1265494.

It is an arithmetic number, because the mean of its divisors is an integer number (1265494).

2^2530987 is an apocalyptic number.

2530987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2530987 is an equidigital number, since it uses as much as digits as its factorization.

2530987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 2530987 is about 1590.9076025967. The cubic root of 2530987 is about 136.2793242721.

The spelling of 2530987 in words is "two million, five hundred thirty thousand, nine hundred eighty-seven".