10130781 has 16 divisors (see below), whose sum is σ = 14385600. Its totient is φ = 6323328.

The previous prime is 10130779. The next prime is 10130821. The reversal of 10130781 is 18703101.

It is not a de Polignac number, because 10130781 - 2¹ = 10130779 is a prime.

It is a super-2 number, since 2×10130781² = 205265447339922, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10130381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4075 + ... + 6071.

It is an arithmetic number, because the mean of its divisors is an integer number (899100).

Almost surely, 2^10130781 is an apocalyptic number.

It is an amenable number.

10130781 is a deficient number, since it is larger than the sum of its proper divisors (4254819).

10130781 is a wasteful number, since it uses less digits than its factorization.

10130781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2108.

The product of its (nonzero) digits is 168, while the sum is 21.

The square root of 10130781 is about 3182.8887822228. Note that the first 3 decimals coincide. The cubic root of 10130781 is about 216.3786012668.

Adding to 10130781 its reverse (18703101), we get a palindrome (28833882).

The spelling of 10130781 in words is "ten million, one hundred thirty thousand, seven hundred eighty-one".