20101829 has 8 divisors (see below), whose sum is σ = 23083680. Its totient is φ = 17312400.

The previous prime is 20101817. The next prime is 20101847. The reversal of 20101829 is 92810102.

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

It is a cyclic number.

It is not a de Polignac number, because 20101829 - 2¹² = 20097733 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 (20101129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47882 + ... + 48299.

It is an arithmetic number, because the mean of its divisors is an integer number (2885460).

Almost surely, 2^20101829 is an apocalyptic number.

It is an amenable number.

20101829 is a deficient number, since it is larger than the sum of its proper divisors (2981851).

20101829 is a wasteful number, since it uses less digits than its factorization.

20101829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96211.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 20101829 is about 4483.5063287565. The cubic root of 20101829 is about 271.9016594107.

The spelling of 20101829 in words is "twenty million, one hundred one thousand, eight hundred twenty-nine".