189415339 has 2 divisors, whose sum is σ = 189415340. Its totient is φ = 189415338.

The previous prime is 189415297. The next prime is 189415349. The reversal of 189415339 is 933514981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189415339 - 2¹¹ = 189413291 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 189415295 and 189415304.

It is not a weakly prime, because it can be changed into another prime (189415349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94707669 + 94707670.

It is an arithmetic number, because the mean of its divisors is an integer number (94707670).

Almost surely, 2^189415339 is an apocalyptic number.

189415339 is a deficient number, since it is larger than the sum of its proper divisors (1).

189415339 is an equidigital number, since it uses as much as digits as its factorization.

189415339 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 116640, while the sum is 43.

The square root of 189415339 is about 13762.8245284171. The cubic root of 189415339 is about 574.2994255385.

The spelling of 189415339 in words is "one hundred eighty-nine million, four hundred fifteen thousand, three hundred thirty-nine".