189361 has 2 divisors, whose sum is σ = 189362. Its totient is φ = 189360.

The previous prime is 189353. The next prime is 189377. The reversal of 189361 is 163981.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 185761 + 3600 = 431^2 + 60^2 .

It is an emirp because it is prime and its reverse (163981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189361 - 2³ = 189353 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (189311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94680 + 94681.

It is an arithmetic number, because the mean of its divisors is an integer number (94681).

2¹⁸⁹³⁶¹ is an apocalyptic number.

It is an amenable number.

189361 is a deficient number, since it is larger than the sum of its proper divisors (1).

189361 is an equidigital number, since it uses as much as digits as its factorization.

189361 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 28.

The square root of 189361 is about 435.1562937612. The cubic root of 189361 is about 57.4244502424.

The spelling of 189361 in words is "one hundred eighty-nine thousand, three hundred sixty-one".