100002881 has 8 divisors (see below), whose sum is σ = 109201824. Its totient is φ = 90821920.

The previous prime is 100002863. The next prime is 100002899. The reversal of 100002881 is 188200001.

It is an interprime number because it is at equal distance from previous prime (100002863) and next prime (100002899).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100002881 is a prime.

It is a super-2 number, since 2×100002881² = 20001152416600322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100002181) 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, 8885 + ... + 16701.

It is an arithmetic number, because the mean of its divisors is an integer number (13650228).

Almost surely, 2^100002881 is an apocalyptic number.

100002881 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

100002881 is a deficient number, since it is larger than the sum of its proper divisors (9198943).

100002881 is a wasteful number, since it uses less digits than its factorization.

100002881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8991.

The product of its (nonzero) digits is 128, while the sum is 20.

The square root of 100002881 is about 10000.1440489625. The cubic root of 100002881 is about 464.1633407909.

Adding to 100002881 its reverse (188200001), we get a palindrome (288202882).

The spelling of 100002881 in words is "one hundred million, two thousand, eight hundred eighty-one".