10129747 has 4 divisors (see below), whose sum is σ = 10376856. Its totient is φ = 9882640.

The previous prime is 10129727. The next prime is 10129751. The reversal of 10129747 is 74792101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74792101 = 113 ⋅661877.

It is a de Polignac number, because none of the positive numbers 2^k-10129747 is a prime.

It is a super-2 number, since 2×10129747² = 205223548568018, which contains 22 as substring.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10129727) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123493 + ... + 123574.

It is an arithmetic number, because the mean of its divisors is an integer number (2594214).

Almost surely, 2^10129747 is an apocalyptic number.

10129747 is a deficient number, since it is larger than the sum of its proper divisors (247109).

10129747 is an equidigital number, since it uses as much as digits as its factorization.

10129747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247108.

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 10129747 is about 3182.7263470176. The cubic root of 10129747 is about 216.3712394426.

The spelling of 10129747 in words is "ten million, one hundred twenty-nine thousand, seven hundred forty-seven".