101800869 has 8 divisors (see below), whose sum is σ = 140113152. Its totient is φ = 65677920.

The previous prime is 101800861. The next prime is 101800873. The reversal of 101800869 is 968008101.

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

It is not a de Polignac number, because 101800869 - 2³ = 101800861 is a prime.

It is a super-2 number, since 2×101800869² = 20726833858310322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101800861) 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, 547224 + ... + 547409.

It is an arithmetic number, because the mean of its divisors is an integer number (17514144).

Almost surely, 2^101800869 is an apocalyptic number.

It is an amenable number.

101800869 is a deficient number, since it is larger than the sum of its proper divisors (38312283).

101800869 is a wasteful number, since it uses less digits than its factorization.

101800869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094667.

The product of its (nonzero) digits is 3456, while the sum is 33.

The square root of 101800869 is about 10089.6416685629. The cubic root of 101800869 is about 466.9286206736.

The spelling of 101800869 in words is "one hundred one million, eight hundred thousand, eight hundred sixty-nine".