131225223 has 8 divisors (see below), whose sum is σ = 175693936. Its totient is φ = 87120000.

The previous prime is 131225221. The next prime is 131225231. The reversal of 131225223 is 322522131.

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

It is not a de Polignac number, because 131225223 - 2¹ = 131225221 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 131225223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131225221) 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, 90028 + ... + 91473.

It is an arithmetic number, because the mean of its divisors is an integer number (21961742).

Almost surely, 2^131225223 is an apocalyptic number.

131225223 is a deficient number, since it is larger than the sum of its proper divisors (44468713).

131225223 is a wasteful number, since it uses less digits than its factorization.

131225223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181745.

The product of its digits is 720, while the sum is 21.

The square root of 131225223 is about 11455.3578294176. The cubic root of 131225223 is about 508.1661976616.

Adding to 131225223 its reverse (322522131), we get a palindrome (453747354).

The spelling of 131225223 in words is "one hundred thirty-one million, two hundred twenty-five thousand, two hundred twenty-three".