30118081 has 8 divisors (see below), whose sum is σ = 35531264. Its totient is φ = 24982560.

The previous prime is 30118061. The next prime is 30118091. The reversal of 30118081 is 18081103.

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 30118081 - 2⁷ = 30117953 is a prime.

It is a super-2 number, since 2×30118081² = 1814197606245122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30118031) 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, 69180 + ... + 69613.

It is an arithmetic number, because the mean of its divisors is an integer number (4441408).

Almost surely, 2^30118081 is an apocalyptic number.

30118081 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

30118081 is a deficient number, since it is larger than the sum of its proper divisors (5413183).

30118081 is a wasteful number, since it uses less digits than its factorization.

30118081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138831.

The product of its (nonzero) digits is 192, while the sum is 22.

The square root of 30118081 is about 5487.9942602011. The cubic root of 30118081 is about 311.1303892485.

Adding to 30118081 its reverse (18081103), we get a palindrome (48199184).

The spelling of 30118081 in words is "thirty million, one hundred eighteen thousand, eighty-one".