183420213 has 4 divisors (see below), whose sum is σ = 244560288. Its totient is φ = 122280140.

The previous prime is 183420197. The next prime is 183420233. The reversal of 183420213 is 312024381.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 183420213 - 2⁴ = 183420197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (183420233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30570033 + ... + 30570038.

It is an arithmetic number, because the mean of its divisors is an integer number (61140072).

Almost surely, 2^183420213 is an apocalyptic number.

It is an amenable number.

183420213 is a deficient number, since it is larger than the sum of its proper divisors (61140075).

183420213 is an equidigital number, since it uses as much as digits as its factorization.

183420213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61140074.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 183420213 is about 13543.2718720404. The cubic root of 183420213 is about 568.1753626441.

Adding to 183420213 its reverse (312024381), we get a palindrome (495444594).

The spelling of 183420213 in words is "one hundred eighty-three million, four hundred twenty thousand, two hundred thirteen".