189315273 has 24 divisors (see below), whose sum is σ = 301576512. Its totient is φ = 105253344.

The previous prime is 189315257. The next prime is 189315289. The reversal of 189315273 is 372513981.

It is an interprime number because it is at equal distance from previous prime (189315257) and next prime (189315289).

It is not a de Polignac number, because 189315273 - 2⁴ = 189315257 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189315223) 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 in 23 ways as a sum of consecutive naturals, for example, 11965 + ... + 22842.

It is an arithmetic number, because the mean of its divisors is an integer number (12565688).

Almost surely, 2^189315273 is an apocalyptic number.

It is an amenable number.

189315273 is a deficient number, since it is larger than the sum of its proper divisors (112261239).

189315273 is a wasteful number, since it uses less digits than its factorization.

189315273 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34861 (or 34854 counting only the distinct ones).

The product of its digits is 45360, while the sum is 39.

The square root of 189315273 is about 13759.1886752090. The cubic root of 189315273 is about 574.1982757416.

The spelling of 189315273 in words is "one hundred eighty-nine million, three hundred fifteen thousand, two hundred seventy-three".