131340529 has 2 divisors, whose sum is σ = 131340530. Its totient is φ = 131340528.

The previous prime is 131340527. The next prime is 131340551. The reversal of 131340529 is 925043131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129436129 + 1904400 = 11377^2 + 1380^2 .

It is a cyclic number.

It is not a de Polignac number, because 131340529 - 2¹ = 131340527 is a prime.

Together with 131340527, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 131340497 and 131340506.

It is not a weakly prime, because it can be changed into another prime (131340523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65670264 + 65670265.

It is an arithmetic number, because the mean of its divisors is an integer number (65670265).

Almost surely, 2^131340529 is an apocalyptic number.

It is an amenable number.

131340529 is a deficient number, since it is larger than the sum of its proper divisors (1).

131340529 is an equidigital number, since it uses as much as digits as its factorization.

131340529 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 131340529 is about 11460.3895658045. The cubic root of 131340529 is about 508.3149938978.

The spelling of 131340529 in words is "one hundred thirty-one million, three hundred forty thousand, five hundred twenty-nine".