131528843 has 2 divisors, whose sum is σ = 131528844. Its totient is φ = 131528842.

The previous prime is 131528819. The next prime is 131528857. The reversal of 131528843 is 348825131.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131528843 - 2¹⁶ = 131463307 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (131527843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65764421 + 65764422.

It is an arithmetic number, because the mean of its divisors is an integer number (65764422).

Almost surely, 2^131528843 is an apocalyptic number.

131528843 is a deficient number, since it is larger than the sum of its proper divisors (1).

131528843 is an equidigital number, since it uses as much as digits as its factorization.

131528843 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23040, while the sum is 35.

The square root of 131528843 is about 11468.6024867897. The cubic root of 131528843 is about 508.5578159174.

The spelling of 131528843 in words is "one hundred thirty-one million, five hundred twenty-eight thousand, eight hundred forty-three".