1587142871 has 2 divisors, whose sum is σ = 1587142872. Its totient is φ = 1587142870.

The previous prime is 1587142819. The next prime is 1587142873. The reversal of 1587142871 is 1782417851.

It is a strong prime.

It is an emirp because it is prime and its reverse (1782417851) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1587142871 - 2¹⁰ = 1587141847 is a prime.

It is a super-2 number, since 2×1587142871² = 5038044985932245282, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1587142873, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1587142873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 793571435 + 793571436.

It is an arithmetic number, because the mean of its divisors is an integer number (793571436).

Almost surely, 2^1587142871 is an apocalyptic number.

1587142871 is a deficient number, since it is larger than the sum of its proper divisors (1).

1587142871 is an equidigital number, since it uses as much as digits as its factorization.

1587142871 is an evil number, because the sum of its binary digits is even.

The product of its digits is 125440, while the sum is 44.

The square root of 1587142871 is about 39838.9617209083. The cubic root of 1587142871 is about 1166.4657932347.

The spelling of 1587142871 in words is "one billion, five hundred eighty-seven million, one hundred forty-two thousand, eight hundred seventy-one".