189081134 has 12 divisors (see below), whose sum is σ = 311749872. Its totient is φ = 85945860.

The previous prime is 189081133. The next prime is 189081163. The reversal of 189081134 is 431180981.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 189081094 and 189081103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189081133) 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 5 ways as a sum of consecutive naturals, for example, 390422 + ... + 390905.

It is an arithmetic number, because the mean of its divisors is an integer number (25979156).

Almost surely, 2^189081134 is an apocalyptic number.

189081134 is a deficient number, since it is larger than the sum of its proper divisors (122668738).

189081134 is a wasteful number, since it uses less digits than its factorization.

189081134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781351 (or 781340 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 35.

The square root of 189081134 is about 13750.6775833048. The cubic root of 189081134 is about 573.9614614747.

The spelling of 189081134 in words is "one hundred eighty-nine million, eighty-one thousand, one hundred thirty-four".