131569043 has 2 divisors, whose sum is σ = 131569044. Its totient is φ = 131569042.

The previous prime is 131569037. The next prime is 131569073. The reversal of 131569043 is 340965131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131569043 - 2¹² = 131564947 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131569073) 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, 65784521 + 65784522.

It is an arithmetic number, because the mean of its divisors is an integer number (65784522).

Almost surely, 2^131569043 is an apocalyptic number.

131569043 is a deficient number, since it is larger than the sum of its proper divisors (1).

131569043 is an equidigital number, since it uses as much as digits as its factorization.

131569043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 32.

The square root of 131569043 is about 11470.3549639930. The cubic root of 131569043 is about 508.6096218972.

The spelling of 131569043 in words is "one hundred thirty-one million, five hundred sixty-nine thousand, forty-three".