100018401 has 16 divisors (see below), whose sum is σ = 152561664. Its totient is φ = 57096144.

The previous prime is 100018379. The next prime is 100018409. The reversal of 100018401 is 104810001.

It is not a de Polignac number, because 100018401 - 2⁷ = 100018273 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100018409) 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, 28210 + ... + 31556.

It is an arithmetic number, because the mean of its divisors is an integer number (9535104).

Almost surely, 2^100018401 is an apocalyptic number.

It is an amenable number.

100018401 is a deficient number, since it is larger than the sum of its proper divisors (52543263).

100018401 is a wasteful number, since it uses less digits than its factorization.

100018401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4780.

The product of its (nonzero) digits is 32, while the sum is 15.

The square root of 100018401 is about 10000.9200076793. The cubic root of 100018401 is about 464.1873515739.

Adding to 100018401 its reverse (104810001), we get a palindrome (204828402).

The spelling of 100018401 in words is "one hundred million, eighteen thousand, four hundred one".