10181729 has 4 divisors (see below), whose sum is σ = 10192020. Its totient is φ = 10171440.

The previous prime is 10181719. The next prime is 10181737. The reversal of 10181729 is 92718101.

10181729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2608225 + 7573504 = 1615^2 + 2752^2 .

It is a cyclic number.

It is not a de Polignac number, because 10181729 - 2¹⁶ = 10116193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10181719) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3482 + ... + 5699.

It is an arithmetic number, because the mean of its divisors is an integer number (2548005).

Almost surely, 2^10181729 is an apocalyptic number.

It is an amenable number.

10181729 is a deficient number, since it is larger than the sum of its proper divisors (10291).

10181729 is an equidigital number, since it uses as much as digits as its factorization.

10181729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10290.

The product of its (nonzero) digits is 1008, while the sum is 29.

The square root of 10181729 is about 3190.8821664236. The cubic root of 10181729 is about 216.7407197232.

The spelling of 10181729 in words is "ten million, one hundred eighty-one thousand, seven hundred twenty-nine".