189423713 has 2 divisors, whose sum is σ = 189423714. Its totient is φ = 189423712.

The previous prime is 189423709. The next prime is 189423761. The reversal of 189423713 is 317324981.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182601169 + 6822544 = 13513^2 + 2612^2 .

It is an emirp because it is prime and its reverse (317324981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189423713 - 2² = 189423709 is a prime.

It is not a weakly prime, because it can be changed into another prime (189423763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94711856 + 94711857.

It is an arithmetic number, because the mean of its divisors is an integer number (94711857).

Almost surely, 2^189423713 is an apocalyptic number.

It is an amenable number.

189423713 is a deficient number, since it is larger than the sum of its proper divisors (1).

189423713 is an equidigital number, since it uses as much as digits as its factorization.

189423713 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 38.

The square root of 189423713 is about 13763.1287503968. The cubic root of 189423713 is about 574.3078886202.

The spelling of 189423713 in words is "one hundred eighty-nine million, four hundred twenty-three thousand, seven hundred thirteen".