100129847 has 4 divisors (see below), whose sum is σ = 106019856. Its totient is φ = 94239840.

The previous prime is 100129823. The next prime is 100129859. The reversal of 100129847 is 748921001.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 100129847 - 2⁸ = 100129591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100129877) 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 in 3 ways as a sum of consecutive naturals, for example, 2944979 + ... + 2945012.

It is an arithmetic number, because the mean of its divisors is an integer number (26504964).

Almost surely, 2^100129847 is an apocalyptic number.

100129847 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

100129847 is a deficient number, since it is larger than the sum of its proper divisors (5890009).

100129847 is an equidigital number, since it uses as much as digits as its factorization.

100129847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5890008.

The product of its (nonzero) digits is 4032, while the sum is 32.

The square root of 100129847 is about 10006.4902438367. The cubic root of 100129847 is about 464.3596952654.

The spelling of 100129847 in words is "one hundred million, one hundred twenty-nine thousand, eight hundred forty-seven".