189547 has 2 divisors, whose sum is σ = 189548. Its totient is φ = 189546.

The previous prime is 189529. The next prime is 189559. The reversal of 189547 is 745981.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (745981) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189547 is a prime.

It is not a weakly prime, because it can be changed into another prime (189517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94773 + 94774.

It is an arithmetic number, because the mean of its divisors is an integer number (94774).

2¹⁸⁹⁵⁴⁷ is an apocalyptic number.

189547 is a deficient number, since it is larger than the sum of its proper divisors (1).

189547 is an equidigital number, since it uses as much as digits as its factorization.

189547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10080, while the sum is 34.

The square root of 189547 is about 435.3699576223. The cubic root of 189547 is about 57.4432458278.

The spelling of 189547 in words is "one hundred eighty-nine thousand, five hundred forty-seven".