189327121 has 2 divisors, whose sum is σ = 189327122. Its totient is φ = 189327120.

The previous prime is 189327101. The next prime is 189327169. The reversal of 189327121 is 121723981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 111534721 + 77792400 = 10561^2 + 8820^2 .

It is a cyclic number.

It is not a de Polignac number, because 189327121 - 2²¹ = 187229969 is a prime.

It is a super-2 number, since 2×189327121² = 71689517492297282, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (189327101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94663560 + 94663561.

It is an arithmetic number, because the mean of its divisors is an integer number (94663561).

Almost surely, 2^189327121 is an apocalyptic number.

It is an amenable number.

189327121 is a deficient number, since it is larger than the sum of its proper divisors (1).

189327121 is an equidigital number, since it uses as much as digits as its factorization.

189327121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 34.

The square root of 189327121 is about 13759.6192171150. The cubic root of 189327121 is about 574.2102539252.

The spelling of 189327121 in words is "one hundred eighty-nine million, three hundred twenty-seven thousand, one hundred twenty-one".