131066939 has 2 divisors, whose sum is σ = 131066940. Its totient is φ = 131066938.

The previous prime is 131066911. The next prime is 131066953. The reversal of 131066939 is 939660131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131066939 - 2²⁴ = 114289723 is a prime.

It is not a weakly prime, because it can be changed into another prime (131066989) 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, 65533469 + 65533470.

It is an arithmetic number, because the mean of its divisors is an integer number (65533470).

Almost surely, 2^131066939 is an apocalyptic number.

131066939 is a deficient number, since it is larger than the sum of its proper divisors (1).

131066939 is an equidigital number, since it uses as much as digits as its factorization.

131066939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26244, while the sum is 38.

The square root of 131066939 is about 11448.4470125865. The cubic root of 131066939 is about 507.9617985926.

The spelling of 131066939 in words is "one hundred thirty-one million, sixty-six thousand, nine hundred thirty-nine".