101712729 has 4 divisors (see below), whose sum is σ = 135616976. Its totient is φ = 67808484.

The previous prime is 101712707. The next prime is 101712749. The reversal of 101712729 is 927217101.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 101712729 - 2⁸ = 101712473 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 101712696 and 101712705.

It is not an unprimeable number, because it can be changed into a prime (101712749) 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, 16952119 + ... + 16952124.

It is an arithmetic number, because the mean of its divisors is an integer number (33904244).

Almost surely, 2^101712729 is an apocalyptic number.

It is an amenable number.

101712729 is a deficient number, since it is larger than the sum of its proper divisors (33904247).

101712729 is an equidigital number, since it uses as much as digits as its factorization.

101712729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33904246.

The product of its (nonzero) digits is 1764, while the sum is 30.

The square root of 101712729 is about 10085.2728768239. The cubic root of 101712729 is about 466.7938249290.

The spelling of 101712729 in words is "one hundred one million, seven hundred twelve thousand, seven hundred twenty-nine".