331094189 has 4 divisors (see below), whose sum is σ = 342511260. Its totient is φ = 319677120.

The previous prime is 331094143. The next prime is 331094251. The reversal of 331094189 is 981490133.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 981490133 = 13 ⋅75499241.

It can be written as a sum of positive squares in 2 ways, for example, as 165122500 + 165971689 = 12850^2 + 12883^2 .

It is a cyclic number.

It is not a de Polignac number, because 331094189 - 2¹⁶ = 331028653 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331094129) 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, 5708492 + ... + 5708549.

It is an arithmetic number, because the mean of its divisors is an integer number (85627815).

Almost surely, 2^331094189 is an apocalyptic number.

It is an amenable number.

331094189 is a deficient number, since it is larger than the sum of its proper divisors (11417071).

331094189 is a wasteful number, since it uses less digits than its factorization.

331094189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11417070.

The product of its (nonzero) digits is 23328, while the sum is 38.

The square root of 331094189 is about 18195.9937623643. The cubic root of 331094189 is about 691.8052489983.

The spelling of 331094189 in words is "three hundred thirty-one million, ninety-four thousand, one hundred eighty-nine".