30000149 has 2 divisors, whose sum is σ = 30000150. Its totient is φ = 30000148.

The previous prime is 30000137. The next prime is 30000163. The reversal of 30000149 is 94100003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 13557124 = 4055^2 + 3682^2 .

It is a cyclic number.

It is not a de Polignac number, because 30000149 - 2⁴ = 30000133 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 (30000109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000074 + 15000075.

It is an arithmetic number, because the mean of its divisors is an integer number (15000075).

Almost surely, 2^30000149 is an apocalyptic number.

It is an amenable number.

30000149 is a deficient number, since it is larger than the sum of its proper divisors (1).

30000149 is an equidigital number, since it uses as much as digits as its factorization.

30000149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 30000149 is about 5477.2391768116. The cubic root of 30000149 is about 310.7237650141.

The spelling of 30000149 in words is "thirty million, one hundred forty-nine", and thus it is an aban number.