30706161 has 4 divisors (see below), whose sum is σ = 40941552. Its totient is φ = 20470772.

The previous prime is 30706153. The next prime is 30706183. The reversal of 30706161 is 16160703.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30706161 - 2³ = 30706153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30706141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5117691 + ... + 5117696.

It is an arithmetic number, because the mean of its divisors is an integer number (10235388).

Almost surely, 2^30706161 is an apocalyptic number.

It is an amenable number.

30706161 is a deficient number, since it is larger than the sum of its proper divisors (10235391).

30706161 is a wasteful number, since it uses less digits than its factorization.

30706161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10235390.

The product of its (nonzero) digits is 756, while the sum is 24.

The square root of 30706161 is about 5541.3140138418. The cubic root of 30706161 is about 313.1423748431.

Adding to 30706161 its reverse (16160703), we get a palindrome (46866864).

The spelling of 30706161 in words is "thirty million, seven hundred six thousand, one hundred sixty-one".