189040203 has 16 divisors (see below), whose sum is σ = 305520000. Its totient is φ = 114569640.

The previous prime is 189040193. The next prime is 189040211. The reversal of 189040203 is 302040981.

It is not a de Polignac number, because 189040203 - 2⁵ = 189040171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (189040213) 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, 317953 + ... + 318546.

It is an arithmetic number, because the mean of its divisors is an integer number (19095000).

Almost surely, 2^189040203 is an apocalyptic number.

189040203 is a deficient number, since it is larger than the sum of its proper divisors (116479797).

189040203 is a wasteful number, since it uses less digits than its factorization.

189040203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636519 (or 636513 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

The square root of 189040203 is about 13749.1891760933. The cubic root of 189040203 is about 573.9200427259.

The spelling of 189040203 in words is "one hundred eighty-nine million, forty thousand, two hundred three".