331242133 has 4 divisors (see below), whose sum is σ = 331313248. Its totient is φ = 331171020.

The previous prime is 331242101. The next prime is 331242169.

331242133 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 331242133 - 2⁵ = 331242101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331242173) by changing a digit.

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, 28041 + ... + 38062.

It is an arithmetic number, because the mean of its divisors is an integer number (82828312).

Almost surely, 2^331242133 is an apocalyptic number.

It is an amenable number.

331242133 is a deficient number, since it is larger than the sum of its proper divisors (71115).

331242133 is an equidigital number, since it uses as much as digits as its factorization.

331242133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71114.

The product of its digits is 1296, while the sum is 22.

The square root of 331242133 is about 18200.0585988068. The cubic root of 331242133 is about 691.9082742589.

The spelling of 331242133 in words is "three hundred thirty-one million, two hundred forty-two thousand, one hundred thirty-three".