331243142 has 8 divisors (see below), whose sum is σ = 496942176. Its totient is φ = 165595752.

The previous prime is 331243097. The next prime is 331243183. The reversal of 331243142 is 241342133.

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 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, 16808 + ... + 30740.

It is an arithmetic number, because the mean of its divisors is an integer number (62117772).

Almost surely, 2^331243142 is an apocalyptic number.

331243142 is a deficient number, since it is larger than the sum of its proper divisors (165699034).

331243142 is a wasteful number, since it uses less digits than its factorization.

331243142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25822.

The product of its digits is 1728, while the sum is 23.

The square root of 331243142 is about 18200.0863184766. The cubic root of 331243142 is about 691.9089768011.

Adding to 331243142 its reverse (241342133), we get a palindrome (572585275).

The spelling of 331243142 in words is "three hundred thirty-one million, two hundred forty-three thousand, one hundred forty-two".