189131734 has 8 divisors (see below), whose sum is σ = 309488328. Its totient is φ = 85968960.

The previous prime is 189131711. The next prime is 189131743. The reversal of 189131734 is 437131981.

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

It is a junction number, because it is equal to n+sod(n) for n = 189131693 and 189131702.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4298427 + ... + 4298470.

It is an arithmetic number, because the mean of its divisors is an integer number (38686041).

Almost surely, 2^189131734 is an apocalyptic number.

189131734 is a deficient number, since it is larger than the sum of its proper divisors (120356594).

189131734 is a wasteful number, since it uses less digits than its factorization.

189131734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8596910.

The product of its digits is 18144, while the sum is 37.

The square root of 189131734 is about 13752.5173695582. The cubic root of 189131734 is about 574.0126561815.

The spelling of 189131734 in words is "one hundred eighty-nine million, one hundred thirty-one thousand, seven hundred thirty-four".