131132233 has 4 divisors (see below), whose sum is σ = 131165968. Its totient is φ = 131098500.

The previous prime is 131132207. The next prime is 131132291. The reversal of 131132233 is 332231131.

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 a de Polignac number, because none of the positive numbers 2^k-131132233 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131132233.

It is not an unprimeable number, because it can be changed into a prime (131132933) 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, 10143 + ... + 19108.

It is an arithmetic number, because the mean of its divisors is an integer number (32791492).

Almost surely, 2^131132233 is an apocalyptic number.

It is an amenable number.

131132233 is a deficient number, since it is larger than the sum of its proper divisors (33735).

131132233 is an equidigital number, since it uses as much as digits as its factorization.

131132233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33734.

The product of its digits is 324, while the sum is 19.

The square root of 131132233 is about 11451.2983106720. The cubic root of 131132233 is about 508.0461355272.

Adding to 131132233 its reverse (332231131), we get a palindrome (463363364).

The spelling of 131132233 in words is "one hundred thirty-one million, one hundred thirty-two thousand, two hundred thirty-three".