189234131 has 4 divisors (see below), whose sum is σ = 189291312. Its totient is φ = 189176952.

The previous prime is 189234121. The next prime is 189234161. The reversal of 189234131 is 131432981.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189234131 is a prime.

It is a super-2 number, since 2×189234131² = 71619112670650322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189234121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23300 + ... + 30353.

It is an arithmetic number, because the mean of its divisors is an integer number (47322828).

Almost surely, 2^189234131 is an apocalyptic number.

189234131 is a deficient number, since it is larger than the sum of its proper divisors (57181).

189234131 is an equidigital number, since it uses as much as digits as its factorization.

189234131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57180.

The product of its digits is 5184, while the sum is 32.

The square root of 189234131 is about 13756.2397114909. The cubic root of 189234131 is about 574.1162287346.

The spelling of 189234131 in words is "one hundred eighty-nine million, two hundred thirty-four thousand, one hundred thirty-one".