131725133 has 2 divisors, whose sum is σ = 131725134. Its totient is φ = 131725132.

The previous prime is 131725123. The next prime is 131725147. The reversal of 131725133 is 331527131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73324969 + 58400164 = 8563^2 + 7642^2 .

It is a cyclic number.

It is not a de Polignac number, because 131725133 - 2⁸ = 131724877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131725123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65862566 + 65862567.

It is an arithmetic number, because the mean of its divisors is an integer number (65862567).

Almost surely, 2^131725133 is an apocalyptic number.

It is an amenable number.

131725133 is a deficient number, since it is larger than the sum of its proper divisors (1).

131725133 is an equidigital number, since it uses as much as digits as its factorization.

131725133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1890, while the sum is 26.

The square root of 131725133 is about 11477.1570085976. The cubic root of 131725133 is about 508.8106760352.

The spelling of 131725133 in words is "one hundred thirty-one million, seven hundred twenty-five thousand, one hundred thirty-three".