189213359 has 2 divisors, whose sum is σ = 189213360. Its totient is φ = 189213358.

The previous prime is 189213337. The next prime is 189213361. The reversal of 189213359 is 953312981.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189213359 is a prime.

Together with 189213361, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189213389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94606679 + 94606680.

It is an arithmetic number, because the mean of its divisors is an integer number (94606680).

Almost surely, 2^189213359 is an apocalyptic number.

189213359 is a deficient number, since it is larger than the sum of its proper divisors (1).

189213359 is an equidigital number, since it uses as much as digits as its factorization.

189213359 is an evil number, because the sum of its binary digits is even.

The product of its digits is 58320, while the sum is 41.

The square root of 189213359 is about 13755.4846879345. The cubic root of 189213359 is about 574.0952212863.

It can be divided in two parts, 1892 and 13359, that added together give a palindrome (15251).

The spelling of 189213359 in words is "one hundred eighty-nine million, two hundred thirteen thousand, three hundred fifty-nine".