189945483 has 16 divisors (see below), whose sum is σ = 311705856. Its totient is φ = 100190880.

The previous prime is 189945479. The next prime is 189945499. The reversal of 189945483 is 384549981.

189945483 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 189945483 - 2² = 189945479 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189945433) 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, 347613 + ... + 348158.

It is an arithmetic number, because the mean of its divisors is an integer number (19481616).

Almost surely, 2^189945483 is an apocalyptic number.

189945483 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

189945483 is a deficient number, since it is larger than the sum of its proper divisors (121760373).

189945483 is a wasteful number, since it uses less digits than its factorization.

189945483 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695794.

The product of its digits is 1244160, while the sum is 51.

The square root of 189945483 is about 13782.0710707789. The cubic root of 189945483 is about 574.8347179642.

The spelling of 189945483 in words is "one hundred eighty-nine million, nine hundred forty-five thousand, four hundred eighty-three".