2587139 has 2 divisors, whose sum is σ = 2587140. Its totient is φ = 2587138.

The previous prime is 2587129. The next prime is 2587147. The reversal of 2587139 is 9317852.

2587139 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2587139 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2587099 and 2587108.

It is not a weakly prime, because it can be changed into another prime (2587129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1293569 + 1293570.

It is an arithmetic number, because the mean of its divisors is an integer number (1293570).

2^2587139 is an apocalyptic number.

2587139 is a deficient number, since it is larger than the sum of its proper divisors (1).

2587139 is an equidigital number, since it uses as much as digits as its factorization.

2587139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 15120, while the sum is 35.

The square root of 2587139 is about 1608.4585788885. The cubic root of 2587139 is about 137.2797841363.

It can be divided in two parts, 2 and 587139, that multiplied together give a triangular number (1174278 = T₁₅₃₂).

The spelling of 2587139 in words is "two million, five hundred eighty-seven thousand, one hundred thirty-nine".