189337 has 2 divisors, whose sum is σ = 189338. Its totient is φ = 189336.

The previous prime is 189311. The next prime is 189347. The reversal of 189337 is 733981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 141376 + 47961 = 376^2 + 219^2 .

It is an emirp because it is prime and its reverse (733981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189337 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 189299 and 189308.

It is not a weakly prime, because it can be changed into another prime (189307) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94668 + 94669.

It is an arithmetic number, because the mean of its divisors is an integer number (94669).

2¹⁸⁹³³⁷ is an apocalyptic number.

It is an amenable number.

189337 is a deficient number, since it is larger than the sum of its proper divisors (1).

189337 is an equidigital number, since it uses as much as digits as its factorization.

189337 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 189337 is about 435.1287165886. The cubic root of 189337 is about 57.4220241092.

Subtracting 189337 from its reverse (733981), we obtain a square (544644 = 738²).

The spelling of 189337 in words is "one hundred eighty-nine thousand, three hundred thirty-seven".