102001881 has 8 divisors (see below), whose sum is σ = 136393600. Its totient is φ = 67805712.

The previous prime is 102001871. The next prime is 102001883. The reversal of 102001881 is 188100201.

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

It is not a de Polignac number, because 102001881 - 2¹⁵ = 101969113 is a prime.

It is a super-2 number, since 2×102001881² = 20808767455076322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102001883) 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, 47665 + ... + 49758.

It is an arithmetic number, because the mean of its divisors is an integer number (17049200).

Almost surely, 2^102001881 is an apocalyptic number.

It is an amenable number.

102001881 is a deficient number, since it is larger than the sum of its proper divisors (34391719).

102001881 is an equidigital number, since it uses as much as digits as its factorization.

102001881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97775.

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

The square root of 102001881 is about 10099.5980613092. The cubic root of 102001881 is about 467.2357449258.

The spelling of 102001881 in words is "one hundred two million, one thousand, eight hundred eighty-one".