189272711 has 2 divisors, whose sum is σ = 189272712. Its totient is φ = 189272710.

The previous prime is 189272693. The next prime is 189272731. The reversal of 189272711 is 117272981.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 189272711 - 2¹⁸ = 189010567 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189272731) 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, 94636355 + 94636356.

It is an arithmetic number, because the mean of its divisors is an integer number (94636356).

Almost surely, 2^189272711 is an apocalyptic number.

189272711 is a deficient number, since it is larger than the sum of its proper divisors (1).

189272711 is an equidigital number, since it uses as much as digits as its factorization.

189272711 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14112, while the sum is 38.

The square root of 189272711 is about 13757.6419127698. The cubic root of 189272711 is about 574.1552419559.

It can be divided in two parts, 18 and 9272711, that added together give a palindrome (9272729).

The spelling of 189272711 in words is "one hundred eighty-nine million, two hundred seventy-two thousand, seven hundred eleven".