214642543 has 12 divisors (see below), whose sum is σ = 229498048. Its totient is φ = 200531520.

The previous prime is 214642537. The next prime is 214642609. The reversal of 214642543 is 345246412.

It is not a de Polignac number, because 214642543 - 2¹⁷ = 214511471 is a prime.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214642523) 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, 21955 + ... + 30187.

Almost surely, 2^214642543 is an apocalyptic number.

214642543 is a deficient number, since it is larger than the sum of its proper divisors (14855505).

214642543 is an equidigital number, since it uses as much as digits as its factorization.

214642543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8322 (or 8293 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

The square root of 214642543 is about 14650.6840454635. The cubic root of 214642543 is about 598.7404531233.

Adding to 214642543 its reverse (345246412), we get a palindrome (559888955).

The spelling of 214642543 in words is "two hundred fourteen million, six hundred forty-two thousand, five hundred forty-three".