18141479 has 8 divisors (see below), whose sum is σ = 18775680. Its totient is φ = 17510400.

The previous prime is 18141469. The next prime is 18141491. The reversal of 18141479 is 97414181.

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

It is a cyclic number.

It is not a de Polignac number, because 18141479 - 2⁴ = 18141463 is a prime.

It is a super-3 number, since 3×18141479³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18141419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23207 + ... + 23975.

It is an arithmetic number, because the mean of its divisors is an integer number (2346960).

Almost surely, 2^18141479 is an apocalyptic number.

18141479 is a deficient number, since it is larger than the sum of its proper divisors (634201).

18141479 is an equidigital number, since it uses as much as digits as its factorization.

18141479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561.

The product of its digits is 8064, while the sum is 35.

The square root of 18141479 is about 4259.2815121802. The cubic root of 18141479 is about 262.7589776711.

The spelling of 18141479 in words is "eighteen million, one hundred forty-one thousand, four hundred seventy-nine".