101802081 has 8 divisors (see below), whose sum is σ = 138036960. Its totient is φ = 66717632.

The previous prime is 101802067. The next prime is 101802083. The reversal of 101802081 is 180208101.

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 101802081 - 2⁵ = 101802049 is a prime.

It is a super-2 number, since 2×101802081² = 20727327391861122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (101802083) 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, 287400 + ... + 287753.

It is an arithmetic number, because the mean of its divisors is an integer number (17254620).

Almost surely, 2^101802081 is an apocalyptic number.

It is an amenable number.

101802081 is a deficient number, since it is larger than the sum of its proper divisors (36234879).

101802081 is an equidigital number, since it uses as much as digits as its factorization.

101802081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575215.

The product of its (nonzero) digits is 128, while the sum is 21.

The square root of 101802081 is about 10089.7017299819. The cubic root of 101802081 is about 466.9304736874.

It can be divided in two parts, 1018020 and 81, that added together give a palindrome (1018101).

The spelling of 101802081 in words is "one hundred one million, eight hundred two thousand, eighty-one".