18100901 has 32 divisors (see below), whose sum is σ = 24326400. Its totient is φ = 13099968.

The previous prime is 18100897. The next prime is 18100919. The reversal of 18100901 is 10900181.

It is not a de Polignac number, because 18100901 - 2² = 18100897 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18100961) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 624155 + ... + 624183.

It is an arithmetic number, because the mean of its divisors is an integer number (760200).

Almost surely, 2^18100901 is an apocalyptic number.

It is an amenable number.

18100901 is a deficient number, since it is larger than the sum of its proper divisors (6225499).

18100901 is an equidigital number, since it uses as much as digits as its factorization.

18100901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106 (or 68 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 20.

The square root of 18100901 is about 4254.5153660552. The cubic root of 18100901 is about 262.5629224821.

The spelling of 18100901 in words is "eighteen million, one hundred thousand, nine hundred one".