30098181 has 8 divisors (see below), whose sum is σ = 40159584. Its totient is φ = 20051120.

The previous prime is 30098171. The next prime is 30098231. The reversal of 30098181 is 18189003.

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 30098181 - 2¹³ = 30089989 is a prime.

It is a super-2 number, since 2×30098181² = 1811800999017522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30098171) 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, 3091 + ... + 8351.

It is an arithmetic number, because the mean of its divisors is an integer number (5019948).

Almost surely, 2^30098181 is an apocalyptic number.

It is an amenable number.

30098181 is a deficient number, since it is larger than the sum of its proper divisors (10061403).

30098181 is a wasteful number, since it uses less digits than its factorization.

30098181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7171.

The product of its (nonzero) digits is 1728, while the sum is 30.

The square root of 30098181 is about 5486.1809120735. The cubic root of 30098181 is about 311.0618494801.

The spelling of 30098181 in words is "thirty million, ninety-eight thousand, one hundred eighty-one".