100081143 has 16 divisors (see below), whose sum is σ = 148424160. Its totient is φ = 66650688.

The previous prime is 100081141. The next prime is 100081147. The reversal of 100081143 is 341180001.

It is not a de Polignac number, because 100081143 - 2¹ = 100081141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100081141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43621 + ... + 45857.

It is an arithmetic number, because the mean of its divisors is an integer number (9276510).

Almost surely, 2^100081143 is an apocalyptic number.

100081143 is a deficient number, since it is larger than the sum of its proper divisors (48343017).

100081143 is a wasteful number, since it uses less digits than its factorization.

100081143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903 (or 3897 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 100081143 is about 10004.0563273104. The cubic root of 100081143 is about 464.2843935674.

The spelling of 100081143 in words is "one hundred million, eighty-one thousand, one hundred forty-three".