189045253 has 16 divisors (see below), whose sum is σ = 203955840. Its totient is φ = 174583296.

The previous prime is 189045251. The next prime is 189045277. The reversal of 189045253 is 352540981.

It is not a de Polignac number, because 189045253 - 2¹ = 189045251 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189045251) 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 in 15 ways as a sum of consecutive naturals, for example, 430408 + ... + 430846.

It is an arithmetic number, because the mean of its divisors is an integer number (12747240).

Almost surely, 2^189045253 is an apocalyptic number.

It is an amenable number.

189045253 is a deficient number, since it is larger than the sum of its proper divisors (14910587).

189045253 is a wasteful number, since it uses less digits than its factorization.

189045253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876.

The product of its (nonzero) digits is 43200, while the sum is 37.

The square root of 189045253 is about 13749.3728220599. The cubic root of 189045253 is about 573.9251532268.

The spelling of 189045253 in words is "one hundred eighty-nine million, forty-five thousand, two hundred fifty-three".