131530223 has 8 divisors (see below), whose sum is σ = 143731200. Its totient is φ = 119369880.

The previous prime is 131530219. The next prime is 131530229. The reversal of 131530223 is 322035131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131530223 - 2² = 131530219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131530195 and 131530204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131530229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3173 + ... + 16526.

It is an arithmetic number, because the mean of its divisors is an integer number (17966400).

Almost surely, 2^131530223 is an apocalyptic number.

131530223 is a deficient number, since it is larger than the sum of its proper divisors (12200977).

131530223 is a wasteful number, since it uses less digits than its factorization.

131530223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20317.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 131530223 is about 11468.6626508935. The cubic root of 131530223 is about 508.5595945066.

Adding to 131530223 its reverse (322035131), we get a palindrome (453565354).

The spelling of 131530223 in words is "one hundred thirty-one million, five hundred thirty thousand, two hundred twenty-three".