131529517 has 16 divisors (see below), whose sum is σ = 156909312. Its totient is φ = 107902080.

The previous prime is 131529511. The next prime is 131529521. The reversal of 131529517 is 715925131.

It is a cyclic number.

It is not a de Polignac number, because 131529517 - 2¹¹ = 131527469 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131529511) 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 in 15 ways as a sum of consecutive naturals, for example, 10888 + ... + 19534.

It is an arithmetic number, because the mean of its divisors is an integer number (9806832).

Almost surely, 2^131529517 is an apocalyptic number.

It is an amenable number.

131529517 is a deficient number, since it is larger than the sum of its proper divisors (25379795).

131529517 is an equidigital number, since it uses as much as digits as its factorization.

131529517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748.

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

The square root of 131529517 is about 11468.6318713262. The cubic root of 131529517 is about 508.5586845922.

The spelling of 131529517 in words is "one hundred thirty-one million, five hundred twenty-nine thousand, five hundred seventeen".