189046181 has 8 divisors (see below), whose sum is σ = 199854720. Its totient is φ = 178323552.

The previous prime is 189046159. The next prime is 189046183. The reversal of 189046181 is 181640981.

189046181 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189046181 is a prime.

It is a super-2 number, since 2×189046181² = 71476917101369522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189046183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16925 + ... + 25778.

It is an arithmetic number, because the mean of its divisors is an integer number (24981840).

Almost surely, 2^189046181 is an apocalyptic number.

It is an amenable number.

189046181 is a deficient number, since it is larger than the sum of its proper divisors (10808539).

189046181 is a wasteful number, since it uses less digits than its factorization.

189046181 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42955.

The product of its (nonzero) digits is 13824, while the sum is 38.

The square root of 189046181 is about 13749.4065690124. The cubic root of 189046181 is about 573.9260923347.

The spelling of 189046181 in words is "one hundred eighty-nine million, forty-six thousand, one hundred eighty-one".