100018289 has 16 divisors (see below), whose sum is σ = 118742400. Its totient is φ = 82456704.

The previous prime is 100018277. The next prime is 100018313. The reversal of 100018289 is 982810001.

It is a cyclic number.

It is not a de Polignac number, because 100018289 - 2⁴ = 100018273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100018189) 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, 20882 + ... + 25220.

It is an arithmetic number, because the mean of its divisors is an integer number (7421400).

Almost surely, 2^100018289 is an apocalyptic number.

It is an amenable number.

100018289 is a deficient number, since it is larger than the sum of its proper divisors (18724111).

100018289 is an equidigital number, since it uses as much as digits as its factorization.

100018289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4472.

The product of its (nonzero) digits is 1152, while the sum is 29.

The square root of 100018289 is about 10000.9144081929. The cubic root of 100018289 is about 464.1871783091.

The spelling of 100018289 in words is "one hundred million, eighteen thousand, two hundred eighty-nine".