131065547 has 2 divisors, whose sum is σ = 131065548. Its totient is φ = 131065546.

The previous prime is 131065513. The next prime is 131065603. The reversal of 131065547 is 745560131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131065547 - 2⁶ = 131065483 is a prime.

It is a super-2 number, since 2×131065547² = 34356355220818418, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131065147) 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, 65532773 + 65532774.

It is an arithmetic number, because the mean of its divisors is an integer number (65532774).

Almost surely, 2^131065547 is an apocalyptic number.

131065547 is a deficient number, since it is larger than the sum of its proper divisors (1).

131065547 is an equidigital number, since it uses as much as digits as its factorization.

131065547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 131065547 is about 11448.3862181532. The cubic root of 131065547 is about 507.9600003122.

The spelling of 131065547 in words is "one hundred thirty-one million, sixty-five thousand, five hundred forty-seven".