30306161 has 8 divisors (see below), whose sum is σ = 30786048. Its totient is φ = 29830000.

The previous prime is 30306149. The next prime is 30306163. The reversal of 30306161 is 16160303.

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 30306161 - 2¹⁰ = 30305137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (30306163) 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, 18506 + ... + 20076.

It is an arithmetic number, because the mean of its divisors is an integer number (3848256).

Almost surely, 2^30306161 is an apocalyptic number.

It is an amenable number.

30306161 is a deficient number, since it is larger than the sum of its proper divisors (479887).

30306161 is a wasteful number, since it uses less digits than its factorization.

30306161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 30306161 is about 5505.1031779613. The cubic root of 30306161 is about 311.7766900042.

Adding to 30306161 its reverse (16160303), we get a palindrome (46466464).

The spelling of 30306161 in words is "thirty million, three hundred six thousand, one hundred sixty-one".