131044225 has 48 divisors (see below), whose sum is σ = 186988032. Its totient is φ = 90351360.

The previous prime is 131044219. The next prime is 131044229. The reversal of 131044225 is 522440131.

It is not a de Polignac number, because 131044225 - 2⁷ = 131044097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131044196 and 131044205.

It is not an unprimeable number, because it can be changed into a prime (131044229) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 351139 + ... + 351511.

It is an arithmetic number, because the mean of its divisors is an integer number (3895584).

Almost surely, 2^131044225 is an apocalyptic number.

It is an amenable number.

131044225 is a deficient number, since it is larger than the sum of its proper divisors (55943807).

131044225 is a wasteful number, since it uses less digits than its factorization.

131044225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 466 (or 461 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 131044225 is about 11447.4549573257. The cubic root of 131044225 is about 507.9324535090.

Adding to 131044225 its reverse (522440131), we get a palindrome (653484356).

It can be divided in two parts, 131044 and 225, that multiplied together give a square (29484900 = 5430²).

The spelling of 131044225 in words is "one hundred thirty-one million, forty-four thousand, two hundred twenty-five".