131175529 has 2 divisors, whose sum is σ = 131175530. Its totient is φ = 131175528.

The previous prime is 131175511. The next prime is 131175533. The reversal of 131175529 is 925571131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131148304 + 27225 = 11452^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 131175529 - 2¹⁵ = 131142761 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131175494 and 131175503.

It is not a weakly prime, because it can be changed into another prime (131175589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65587764 + 65587765.

It is an arithmetic number, because the mean of its divisors is an integer number (65587765).

Almost surely, 2^131175529 is an apocalyptic number.

It is an amenable number.

131175529 is a deficient number, since it is larger than the sum of its proper divisors (1).

131175529 is an equidigital number, since it uses as much as digits as its factorization.

131175529 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9450, while the sum is 34.

The square root of 131175529 is about 11453.1885953214. The cubic root of 131175529 is about 508.1020433300.

The spelling of 131175529 in words is "one hundred thirty-one million, one hundred seventy-five thousand, five hundred twenty-nine".