189071193 has 8 divisors (see below), whose sum is σ = 256851648. Its totient is φ = 123669104.

The previous prime is 189071191. The next prime is 189071209. The reversal of 189071193 is 391170981.

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 189071193 - 2¹ = 189071191 is a prime.

It is not an unprimeable number, because it can be changed into a prime (189071191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 594405 + ... + 594722.

It is an arithmetic number, because the mean of its divisors is an integer number (32106456).

Almost surely, 2^189071193 is an apocalyptic number.

It is an amenable number.

189071193 is a deficient number, since it is larger than the sum of its proper divisors (67780455).

189071193 is a wasteful number, since it uses less digits than its factorization.

189071193 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189183.

The product of its (nonzero) digits is 13608, while the sum is 39.

The square root of 189071193 is about 13750.3161054574. The cubic root of 189071193 is about 573.9514025637.

It can be divided in two parts, 18907 and 1193, that added together give a triangular number (20100 = T₂₀₀).

The spelling of 189071193 in words is "one hundred eighty-nine million, seventy-one thousand, one hundred ninety-three".