189431126 has 8 divisors (see below), whose sum is σ = 285634944. Its totient is φ = 94219480.

The previous prime is 189431113. The next prime is 189431147. The reversal of 189431126 is 621134981.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247565 + ... + 248328.

It is an arithmetic number, because the mean of its divisors is an integer number (35704368).

Almost surely, 2^189431126 is an apocalyptic number.

189431126 is a deficient number, since it is larger than the sum of its proper divisors (96203818).

189431126 is a wasteful number, since it uses less digits than its factorization.

189431126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496086.

The product of its digits is 10368, while the sum is 35.

The square root of 189431126 is about 13763.3980542597. The cubic root of 189431126 is about 574.3153802709.

The spelling of 189431126 in words is "one hundred eighty-nine million, four hundred thirty-one thousand, one hundred twenty-six".