30306149 has 2 divisors, whose sum is σ = 30306150. Its totient is φ = 30306148.

The previous prime is 30306047. The next prime is 30306163. The reversal of 30306149 is 94160303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28569025 + 1737124 = 5345^2 + 1318^2 .

It is a cyclic number.

It is not a de Polignac number, because 30306149 - 2¹² = 30302053 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30306649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15153074 + 15153075.

It is an arithmetic number, because the mean of its divisors is an integer number (15153075).

Almost surely, 2^30306149 is an apocalyptic number.

It is an amenable number.

30306149 is a deficient number, since it is larger than the sum of its proper divisors (1).

30306149 is an equidigital number, since it uses as much as digits as its factorization.

30306149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 26.

The square root of 30306149 is about 5505.1020880634. The cubic root of 30306149 is about 311.7766488539.

The spelling of 30306149 in words is "thirty million, three hundred six thousand, one hundred forty-nine".