131225333 has 2 divisors, whose sum is σ = 131225334. Its totient is φ = 131225332.

The previous prime is 131225323. The next prime is 131225351. The reversal of 131225333 is 333522131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 113060689 + 18164644 = 10633^2 + 4262^2 .

It is a cyclic number.

It is not a de Polignac number, because 131225333 - 2⁴ = 131225317 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131225299 and 131225308.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131225323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65612666 + 65612667.

It is an arithmetic number, because the mean of its divisors is an integer number (65612667).

Almost surely, 2^131225333 is an apocalyptic number.

It is an amenable number.

131225333 is a deficient number, since it is larger than the sum of its proper divisors (1).

131225333 is an equidigital number, since it uses as much as digits as its factorization.

131225333 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1620, while the sum is 23.

The square root of 131225333 is about 11455.3626306634. The cubic root of 131225333 is about 508.1663396522.

Adding to 131225333 its reverse (333522131), we get a palindrome (464747464).

The spelling of 131225333 in words is "one hundred thirty-one million, two hundred twenty-five thousand, three hundred thirty-three".