131529511 has 2 divisors, whose sum is σ = 131529512. Its totient is φ = 131529510.

The previous prime is 131529499. The next prime is 131529521. The reversal of 131529511 is 115925131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131529511 - 2⁷ = 131529383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 131529511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131529521) 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, 65764755 + 65764756.

It is an arithmetic number, because the mean of its divisors is an integer number (65764756).

Almost surely, 2^131529511 is an apocalyptic number.

131529511 is a deficient number, since it is larger than the sum of its proper divisors (1).

131529511 is an equidigital number, since it uses as much as digits as its factorization.

131529511 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1350, while the sum is 28.

The square root of 131529511 is about 11468.6316097432. The cubic root of 131529511 is about 508.5586768592.

The spelling of 131529511 in words is "one hundred thirty-one million, five hundred twenty-nine thousand, five hundred eleven".