189891483 has 16 divisors (see below), whose sum is σ = 259518336. Its totient is φ = 123439680.

The previous prime is 189891463. The next prime is 189891487. The reversal of 189891483 is 384198981.

189891483 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189891483 - 2⁵ = 189891451 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189891487) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 120088 + ... + 121658.

It is an arithmetic number, because the mean of its divisors is an integer number (16219896).

Almost surely, 2^189891483 is an apocalyptic number.

189891483 is a deficient number, since it is larger than the sum of its proper divisors (69626853).

189891483 is a wasteful number, since it uses less digits than its factorization.

189891483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554.

The product of its digits is 497664, while the sum is 51.

The square root of 189891483 is about 13780.1118645677. Note that the first 3 decimals coincide. The cubic root of 189891483 is about 574.7802391451.

The spelling of 189891483 in words is "one hundred eighty-nine million, eight hundred ninety-one thousand, four hundred eighty-three".