1587142857143 has 4 divisors (see below), whose sum is σ = 1613161592568. Its totient is φ = 1561124121720.

The previous prime is 1587142857107. The next prime is 1587142857149. The reversal of 1587142857143 is 3417582417851.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1587142857143 - 2¹² = 1587142853047 is a prime.

It is a super-2 number, since 2×1587142857143² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587142857149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13009367621 + ... + 13009367742.

It is an arithmetic number, because the mean of its divisors is an integer number (403290398142).

Almost surely, 2^{1587142857143} is an apocalyptic number.

1587142857143 is a deficient number, since it is larger than the sum of its proper divisors (26018735425).

1587142857143 is an equidigital number, since it uses as much as digits as its factorization.

1587142857143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26018735424.

The product of its digits is 7526400, while the sum is 56.

The spelling of 1587142857143 in words is "one trillion, five hundred eighty-seven billion, one hundred forty-two million, eight hundred fifty-seven thousand, one hundred forty-three".