213620143 has 8 divisors (see below), whose sum is σ = 233159760. Its totient is φ = 194100480.

The previous prime is 213620137. The next prime is 213620149. The reversal of 213620143 is 341026312.

It is an interprime number because it is at equal distance from previous prime (213620137) and next prime (213620149).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213620143 - 2⁵ = 213620111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213620149) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25573 + ... + 32881.

It is an arithmetic number, because the mean of its divisors is an integer number (29144970).

Almost surely, 2^213620143 is an apocalyptic number.

213620143 is a deficient number, since it is larger than the sum of its proper divisors (19539617).

213620143 is a wasteful number, since it uses less digits than its factorization.

213620143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9977.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 213620143 is about 14615.7498268135. The cubic root of 213620143 is about 597.7882859227.

Adding to 213620143 its reverse (341026312), we get a palindrome (554646455).

The spelling of 213620143 in words is "two hundred thirteen million, six hundred twenty thousand, one hundred forty-three".