30470161 has 2 divisors, whose sum is σ = 30470162. Its totient is φ = 30470160.

The previous prime is 30470159. The next prime is 30470189. The reversal of 30470161 is 16107403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24443136 + 6027025 = 4944^2 + 2455^2 .

It is a cyclic number.

It is not a de Polignac number, because 30470161 - 2¹ = 30470159 is a prime.

It is a super-2 number, since 2×30470161² = 1856861422731842, which contains 22 as substring.

Together with 30470159, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30470131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15235080 + 15235081.

It is an arithmetic number, because the mean of its divisors is an integer number (15235081).

Almost surely, 2^30470161 is an apocalyptic number.

It is an amenable number.

30470161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30470161 is an equidigital number, since it uses as much as digits as its factorization.

30470161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 30470161 is about 5519.9783514068. The cubic root of 30470161 is about 312.3380656484.

Adding to 30470161 its reverse (16107403), we get a palindrome (46577564).

The spelling of 30470161 in words is "thirty million, four hundred seventy thousand, one hundred sixty-one".