30994177 has 2 divisors, whose sum is σ = 30994178. Its totient is φ = 30994176.

The previous prime is 30994169. The next prime is 30994181. The reversal of 30994177 is 77149903.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15752961 + 15241216 = 3969^2 + 3904^2 .

It is an emirp because it is prime and its reverse (77149903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30994177 - 2³ = 30994169 is a prime.

It is not a weakly prime, because it can be changed into another prime (30994147) 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 as a sum of consecutive naturals, namely, 15497088 + 15497089.

It is an arithmetic number, because the mean of its divisors is an integer number (15497089).

Almost surely, 2^30994177 is an apocalyptic number.

It is an amenable number.

30994177 is a deficient number, since it is larger than the sum of its proper divisors (1).

30994177 is an equidigital number, since it uses as much as digits as its factorization.

30994177 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 30994177 is about 5567.2414174347. The cubic root of 30994177 is about 314.1183949112.

The spelling of 30994177 in words is "thirty million, nine hundred ninety-four thousand, one hundred seventy-seven".