30099081 has 8 divisors (see below), whose sum is σ = 40160160. Its totient is φ = 20052032.

The previous prime is 30099067. The next prime is 30099089. The reversal of 30099081 is 18099003.

It is a happy number.

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 30099081 - 2¹⁷ = 29968009 is a prime.

It is a super-2 number, since 2×30099081² = 1811909354089122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (30099089) 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, 3505 + ... + 8513.

It is an arithmetic number, because the mean of its divisors is an integer number (5020020).

Almost surely, 2^30099081 is an apocalyptic number.

It is an amenable number.

30099081 is a deficient number, since it is larger than the sum of its proper divisors (10061079).

30099081 is a wasteful number, since it uses less digits than its factorization.

30099081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7015.

The product of its (nonzero) digits is 1944, while the sum is 30.

The square root of 30099081 is about 5486.2629357332. The cubic root of 30099081 is about 311.0649499208.

It can be divided in two parts, 3009 and 9081, that added together give a triangular number (12090 = T₁₅₅).

The spelling of 30099081 in words is "thirty million, ninety-nine thousand, eighty-one".