131441225 has 12 divisors (see below), whose sum is σ = 164181084. Its totient is φ = 104382720.

The previous prime is 131441117. The next prime is 131441243. The reversal of 131441225 is 522144131.

It can be written as a sum of positive squares in 6 ways, for example, as 27237961 + 104203264 = 5219^2 + 10208^2 .

It is not a de Polignac number, because 131441225 - 2¹⁶ = 131375689 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 8.

It is a self number, because there is not a number n which added to its sum of digits gives 131441225.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15764 + ... + 22613.

It is an arithmetic number, because the mean of its divisors is an integer number (13681757).

Almost surely, 2^131441225 is an apocalyptic number.

It is an amenable number.

131441225 is a deficient number, since it is larger than the sum of its proper divisors (32739859).

131441225 is a wasteful number, since it uses less digits than its factorization.

131441225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38524 (or 38519 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 131441225 is about 11464.7819429765. The cubic root of 131441225 is about 508.4448654911. Note that the first 3 decimals are identical.

Adding to 131441225 its reverse (522144131), we get a palindrome (653585356).

The spelling of 131441225 in words is "one hundred thirty-one million, four hundred forty-one thousand, two hundred twenty-five".