189100143 has 16 divisors (see below), whose sum is σ = 280364640. Its totient is φ = 125969472.

The previous prime is 189100127. The next prime is 189100151. The reversal of 189100143 is 341001981.

It is not a de Polignac number, because 189100143 - 2⁴ = 189100127 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189100543) 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, 56505 + ... + 59757.

It is an arithmetic number, because the mean of its divisors is an integer number (17522790).

Almost surely, 2^189100143 is an apocalyptic number.

189100143 is a deficient number, since it is larger than the sum of its proper divisors (91264497).

189100143 is a wasteful number, since it uses less digits than its factorization.

189100143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5415 (or 5409 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 27.

The square root of 189100143 is about 13751.3687682354. The cubic root of 189100143 is about 573.9806949603.

The spelling of 189100143 in words is "one hundred eighty-nine million, one hundred thousand, one hundred forty-three".