5181587 has 2 divisors, whose sum is σ = 5181588. Its totient is φ = 5181586.

The previous prime is 5181581. The next prime is 5181599. The reversal of 5181587 is 7851815.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5181587 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (5181581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590793 + 2590794.

It is an arithmetic number, because the mean of its divisors is an integer number (2590794).

Almost surely, 2^5181587 is an apocalyptic number.

5181587 is a deficient number, since it is larger than the sum of its proper divisors (1).

5181587 is an equidigital number, since it uses as much as digits as its factorization.

5181587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11200, while the sum is 35.

The square root of 5181587 is about 2276.3099525328. The cubic root of 5181587 is about 173.0430912739.

The spelling of 5181587 in words is "five million, one hundred eighty-one thousand, five hundred eighty-seven".