101691029 has 8 divisors (see below), whose sum is σ = 113641920. Its totient is φ = 90191200.

The previous prime is 101691013. The next prime is 101691041. The reversal of 101691029 is 920196101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 101691029 - 2⁴ = 101691013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101690992 and 101691010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101691829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112289 + ... + 113190.

It is an arithmetic number, because the mean of its divisors is an integer number (14205240).

Almost surely, 2^101691029 is an apocalyptic number.

It is an amenable number.

101691029 is a deficient number, since it is larger than the sum of its proper divisors (11950891).

101691029 is a wasteful number, since it uses less digits than its factorization.

101691029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225531.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 101691029 is about 10084.1969933158. The cubic root of 101691029 is about 466.7606263755.

The spelling of 101691029 in words is "one hundred one million, six hundred ninety-one thousand, twenty-nine".