2487139 has 2 divisors, whose sum is σ = 2487140. Its totient is φ = 2487138.

The previous prime is 2487137. The next prime is 2487143. The reversal of 2487139 is 9317842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2487139 - 2¹ = 2487137 is a prime.

Together with 2487137, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2487137) 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, 1243569 + 1243570.

It is an arithmetic number, because the mean of its divisors is an integer number (1243570).

2^2487139 is an apocalyptic number.

2487139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2487139 is an equidigital number, since it uses as much as digits as its factorization.

2487139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 34.

The square root of 2487139 is about 1577.0665807124. The cubic root of 2487139 is about 135.4877464262.

It can be divided in two parts, 24871 and 39, that multiplied together give a palindrome (969969).

The spelling of 2487139 in words is "two million, four hundred eighty-seven thousand, one hundred thirty-nine".