131452225 has 6 divisors (see below), whose sum is σ = 163000790. Its totient is φ = 105161760.

The previous prime is 131452219. The next prime is 131452253. The reversal of 131452225 is 522254131.

It can be written as a sum of positive squares in 3 ways, for example, as 37051569 + 94400656 = 6087^2 + 9716^2 .

It is a de Polignac number, because none of the positive numbers 2^k-131452225 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5258089 = 131452225 / (1 + 3 + 1 + 4 + 5 + 2 + 2 + 2 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 131452225.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2629020 + ... + 2629069.

Almost surely, 2^131452225 is an apocalyptic number.

It is an amenable number.

131452225 is a deficient number, since it is larger than the sum of its proper divisors (31548565).

131452225 is an equidigital number, since it uses as much as digits as its factorization.

131452225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5258099 (or 5258094 counting only the distinct ones).

The product of its digits is 2400, while the sum is 25.

The square root of 131452225 is about 11465.2616629539. The cubic root of 131452225 is about 508.4590486048.

The spelling of 131452225 in words is "one hundred thirty-one million, four hundred fifty-two thousand, two hundred twenty-five".