18100481 has 4 divisors (see below), whose sum is σ = 20686272. Its totient is φ = 15514692.

The previous prime is 18100429. The next prime is 18100487. The reversal of 18100481 is 18400181.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 18100481 - 2¹⁴ = 18084097 is a prime.

It is a super-2 number, since 2×18100481² = 655254824862722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18100487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1292885 + ... + 1292898.

It is an arithmetic number, because the mean of its divisors is an integer number (5171568).

Almost surely, 2^18100481 is an apocalyptic number.

It is an amenable number.

18100481 is a deficient number, since it is larger than the sum of its proper divisors (2585791).

18100481 is an equidigital number, since it uses as much as digits as its factorization.

18100481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585790.

The product of its (nonzero) digits is 256, while the sum is 23.

The square root of 18100481 is about 4254.4660064455. The cubic root of 18100481 is about 262.5608916941.

It can be divided in two parts, 18100 and 481, that added together give a palindrome (18581).

The spelling of 18100481 in words is "eighteen million, one hundred thousand, four hundred eighty-one".