30988049 has 2 divisors, whose sum is σ = 30988050. Its totient is φ = 30988048.

The previous prime is 30988043. The next prime is 30988057. The reversal of 30988049 is 94088903.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 13010449 = 4240^2 + 3607^2 .

It is an emirp because it is prime and its reverse (94088903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30988049 - 2⁴ = 30988033 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 30987997 and 30988015.

It is not a weakly prime, because it can be changed into another prime (30988043) 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, 15494024 + 15494025.

It is an arithmetic number, because the mean of its divisors is an integer number (15494025).

Almost surely, 2^30988049 is an apocalyptic number.

It is an amenable number.

30988049 is a deficient number, since it is larger than the sum of its proper divisors (1).

30988049 is an equidigital number, since it uses as much as digits as its factorization.

30988049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 62208, while the sum is 41.

The square root of 30988049 is about 5566.6910278908. The cubic root of 30988049 is about 314.0976916202.

The spelling of 30988049 in words is "thirty million, nine hundred eighty-eight thousand, forty-nine".