2143213587 has 12 divisors (see below), whose sum is σ = 3210410840. Its totient is φ = 1428808896.

The previous prime is 2143213571. The next prime is 2143213601. The reversal of 2143213587 is 7853123412.

2143213587 is a `hidden beast` number, since 21 + 43 + 2 + 13 + 587 = 666.

It is not a de Polignac number, because 2143213587 - 2⁴ = 2143213571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143213507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4409662 + ... + 4410147.

Almost surely, 2^2143213587 is an apocalyptic number.

2143213587 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

2143213587 is a deficient number, since it is larger than the sum of its proper divisors (1067197253).

2143213587 is an frugal number, since it uses more digits than its factorization.

2143213587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8819824 (or 8819812 counting only the distinct ones).

The product of its digits is 40320, while the sum is 36.

The square root of 2143213587 is about 46294.8548653087. The cubic root of 2143213587 is about 1289.3034693003.

Adding to 2143213587 its reverse (7853123412), we get a palindrome (9996336999).

The spelling of 2143213587 in words is "two billion, one hundred forty-three million, two hundred thirteen thousand, five hundred eighty-seven".