130062781 has 2 divisors, whose sum is σ = 130062782. Its totient is φ = 130062780.

The previous prime is 130062761. The next prime is 130062827. The reversal of 130062781 is 187260031.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 71402500 + 58660281 = 8450^2 + 7659^2 .

It is a cyclic number.

It is not a de Polignac number, because 130062781 - 2¹⁵ = 130030013 is a prime.

It is a super-3 number, since 3×130062781³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130062761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65031390 + 65031391.

It is an arithmetic number, because the mean of its divisors is an integer number (65031391).

Almost surely, 2^130062781 is an apocalyptic number.

It is an amenable number.

130062781 is a deficient number, since it is larger than the sum of its proper divisors (1).

130062781 is an equidigital number, since it uses as much as digits as its factorization.

130062781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 130062781 is about 11404.5070476544. The cubic root of 130062781 is about 506.6612364280.

The spelling of 130062781 in words is "one hundred thirty million, sixty-two thousand, seven hundred eighty-one".