100342081 has 8 divisors (see below), whose sum is σ = 116388800. Its totient is φ = 84723408.

The previous prime is 100342069. The next prime is 100342141. The reversal of 100342081 is 180243001.

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

It is not a de Polignac number, because 100342081 - 2⁵ = 100342049 is a prime.

It is a super-2 number, since 2×100342081² = 20137066438821122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100342061) 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, 106506 + ... + 107443.

It is an arithmetic number, because the mean of its divisors is an integer number (14548600).

Almost surely, 2^100342081 is an apocalyptic number.

It is an amenable number.

100342081 is a deficient number, since it is larger than the sum of its proper divisors (16046719).

100342081 is an equidigital number, since it uses as much as digits as its factorization.

100342081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 214023.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 100342081 is about 10017.0894475391. The cubic root of 100342081 is about 464.6875474489.

Adding to 100342081 its reverse (180243001), we get a palindrome (280585082).

The spelling of 100342081 in words is "one hundred million, three hundred forty-two thousand, eighty-one".