189276169 has 2 divisors, whose sum is σ = 189276170. Its totient is φ = 189276168.

The previous prime is 189276151. The next prime is 189276203. The reversal of 189276169 is 961672981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 146700544 + 42575625 = 12112^2 + 6525^2 .

It is an emirp because it is prime and its reverse (961672981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189276169 - 2⁵ = 189276137 is a prime.

It is a super-2 number, since 2×189276169² = 71650936302633122, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (189276149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94638084 + 94638085.

It is an arithmetic number, because the mean of its divisors is an integer number (94638085).

Almost surely, 2^189276169 is an apocalyptic number.

It is an amenable number.

189276169 is a deficient number, since it is larger than the sum of its proper divisors (1).

189276169 is an equidigital number, since it uses as much as digits as its factorization.

189276169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 326592, while the sum is 49.

The square root of 189276169 is about 13757.7675878029. The cubic root of 189276169 is about 574.1587385274.

The spelling of 189276169 in words is "one hundred eighty-nine million, two hundred seventy-six thousand, one hundred sixty-nine".