30548149 has 2 divisors, whose sum is σ = 30548150. Its totient is φ = 30548148.

The previous prime is 30548131. The next prime is 30548171. The reversal of 30548149 is 94184503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 26316900 + 4231249 = 5130^2 + 2057^2 .

It is a cyclic number.

It is not a de Polignac number, because 30548149 - 2²¹ = 28450997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30548249) 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, 15274074 + 15274075.

It is an arithmetic number, because the mean of its divisors is an integer number (15274075).

Almost surely, 2^30548149 is an apocalyptic number.

It is an amenable number.

30548149 is a deficient number, since it is larger than the sum of its proper divisors (1).

30548149 is an equidigital number, since it uses as much as digits as its factorization.

30548149 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 30548149 is about 5527.0379951652. The cubic root of 30548149 is about 312.6043137624.

The spelling of 30548149 in words is "thirty million, five hundred forty-eight thousand, one hundred forty-nine".