18741081 has 8 divisors (see below), whose sum is σ = 25794304. Its totient is φ = 12090960.

The previous prime is 18741061. The next prime is 18741083. The reversal of 18741081 is 18014781.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 18741081 - 2⁶ = 18741017 is a prime.

It is a super-2 number, since 2×18741081² = 702456234097122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (18741083) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100666 + ... + 100851.

It is an arithmetic number, because the mean of its divisors is an integer number (3224288).

Almost surely, 2^18741081 is an apocalyptic number.

It is an amenable number.

18741081 is a deficient number, since it is larger than the sum of its proper divisors (7053223).

18741081 is a wasteful number, since it uses less digits than its factorization.

18741081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201551.

The product of its (nonzero) digits is 1792, while the sum is 30.

The square root of 18741081 is about 4329.0970190099. The cubic root of 18741081 is about 265.6225118291.

The spelling of 18741081 in words is "eighteen million, seven hundred forty-one thousand, eighty-one".