189156441 has 8 divisors (see below), whose sum is σ = 258074080. Its totient is φ = 123171552.

The previous prime is 189156427. The next prime is 189156481. The reversal of 189156441 is 144651981.

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

It is not a de Polignac number, because 189156441 - 2⁶ = 189156377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 189156441.

It is not an unprimeable number, because it can be changed into a prime (189156481) 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, 733036 + ... + 733293.

It is an arithmetic number, because the mean of its divisors is an integer number (32259260).

Almost surely, 2^189156441 is an apocalyptic number.

It is an amenable number.

189156441 is a deficient number, since it is larger than the sum of its proper divisors (68917639).

189156441 is a wasteful number, since it uses less digits than its factorization.

189156441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1466375.

The product of its digits is 34560, while the sum is 39.

The square root of 189156441 is about 13753.4156121307. The cubic root of 189156441 is about 574.0376502476.

The spelling of 189156441 in words is "one hundred eighty-nine million, one hundred fifty-six thousand, four hundred forty-one".