331989134 has 4 divisors (see below), whose sum is σ = 497983704. Its totient is φ = 165994566.

The previous prime is 331989083. The next prime is 331989139. The reversal of 331989134 is 431989133.

331989134 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is a super-2 number, since 2×331989134² = 220433570188139912, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 331989091 and 331989100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331989139) 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 as a sum of consecutive naturals, namely, 82997282 + ... + 82997285.

It is an arithmetic number, because the mean of its divisors is an integer number (124495926).

Almost surely, 2^331989134 is an apocalyptic number.

331989134 is a deficient number, since it is larger than the sum of its proper divisors (165994570).

331989134 is a wasteful number, since it uses less digits than its factorization.

331989134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165994569.

The product of its digits is 69984, while the sum is 41.

The square root of 331989134 is about 18220.5689812366. The cubic root of 331989134 is about 692.4280029586.

Subtracting 331989134 from its reverse (431989133), we obtain a palindrome (99999999).

The spelling of 331989134 in words is "three hundred thirty-one million, nine hundred eighty-nine thousand, one hundred thirty-four".