214642143541 has 24 divisors (see below), whose sum is σ = 250993416960. Its totient is φ = 183017116800.

The previous prime is 214642143533. The next prime is 214642143557. The reversal of 214642143541 is 145341246412.

It is not a de Polignac number, because 214642143541 - 2³ = 214642143533 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 214642143541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214642143571) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11457180 + ... + 11475898.

It is an arithmetic number, because the mean of its divisors is an integer number (10458059040).

Almost surely, 2^214642143541 is an apocalyptic number.

It is an amenable number.

214642143541 is a deficient number, since it is larger than the sum of its proper divisors (36351273419).

214642143541 is a wasteful number, since it uses less digits than its factorization.

214642143541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19945 (or 19938 counting only the distinct ones).

The product of its digits is 92160, while the sum is 37.

Adding to 214642143541 its reverse (145341246412), we get a palindrome (359983389953).

The spelling of 214642143541 in words is "two hundred fourteen billion, six hundred forty-two million, one hundred forty-three thousand, five hundred forty-one".