131808322 has 4 divisors (see below), whose sum is σ = 197712486. Its totient is φ = 65904160.

The previous prime is 131808269. The next prime is 131808323. The reversal of 131808322 is 223808131.

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

It can be written as a sum of positive squares in only one way, i.e., 99420841 + 32387481 = 9971^2 + 5691^2 .

It is not an unprimeable number, because it can be changed into a prime (131808323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32952079 + ... + 32952082.

Almost surely, 2^131808322 is an apocalyptic number.

131808322 is a deficient number, since it is larger than the sum of its proper divisors (65904164).

131808322 is an equidigital number, since it uses as much as digits as its factorization.

131808322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65904163.

The product of its (nonzero) digits is 2304, while the sum is 28.

The square root of 131808322 is about 11480.7805483774. The cubic root of 131808322 is about 508.9177640375.

The spelling of 131808322 in words is "one hundred thirty-one million, eight hundred eight thousand, three hundred twenty-two".