30486161 has 2 divisors, whose sum is σ = 30486162. Its totient is φ = 30486160.

The previous prime is 30486121. The next prime is 30486167. The reversal of 30486161 is 16168403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 22505536 + 7980625 = 4744^2 + 2825^2 .

It is an emirp because it is prime and its reverse (16168403) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30486161 - 2¹⁸ = 30224017 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30486167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15243080 + 15243081.

It is an arithmetic number, because the mean of its divisors is an integer number (15243081).

Almost surely, 2^30486161 is an apocalyptic number.

It is an amenable number.

30486161 is a deficient number, since it is larger than the sum of its proper divisors (1).

30486161 is an equidigital number, since it uses as much as digits as its factorization.

30486161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 30486161 is about 5521.4274422472. The cubic root of 30486161 is about 312.3927260596.

The spelling of 30486161 in words is "thirty million, four hundred eighty-six thousand, one hundred sixty-one".