189844131 has 8 divisors (see below), whose sum is σ = 256690944. Its totient is φ = 124780040.

The previous prime is 189844111. The next prime is 189844133. The reversal of 189844131 is 131448981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 189844131 - 2⁵ = 189844099 is a prime.

It is a super-2 number, since 2×189844131² = 72081588150290322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 189844131.

It is not an unprimeable number, because it can be changed into a prime (189844133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 445431 + ... + 445856.

It is an arithmetic number, because the mean of its divisors is an integer number (32086368).

Almost surely, 2^189844131 is an apocalyptic number.

189844131 is a deficient number, since it is larger than the sum of its proper divisors (66846813).

189844131 is an equidigital number, since it uses as much as digits as its factorization.

189844131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 891361.

The product of its digits is 27648, while the sum is 39.

The square root of 189844131 is about 13778.3936291572. The cubic root of 189844131 is about 574.7324587741.

The spelling of 189844131 in words is "one hundred eighty-nine million, eight hundred forty-four thousand, one hundred thirty-one".