189557029 has 8 divisors (see below), whose sum is σ = 197255520. Its totient is φ = 182008176.

The previous prime is 189557009. The next prime is 189557047. The reversal of 189557029 is 920755981.

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 189557029 - 2¹³ = 189548837 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 189557029.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189557009) 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, 34822 + ... + 39895.

It is an arithmetic number, because the mean of its divisors is an integer number (24656940).

Almost surely, 2^189557029 is an apocalyptic number.

It is an amenable number.

189557029 is a deficient number, since it is larger than the sum of its proper divisors (7698491).

189557029 is an equidigital number, since it uses as much as digits as its factorization.

189557029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74819.

The product of its (nonzero) digits is 226800, while the sum is 46.

The square root of 189557029 is about 13767.9711286740. The cubic root of 189557029 is about 574.4425892416.

The spelling of 189557029 in words is "one hundred eighty-nine million, five hundred fifty-seven thousand, twenty-nine".