30049913 has 2 divisors, whose sum is σ = 30049914. Its totient is φ = 30049912.

The previous prime is 30049909. The next prime is 30049961. The reversal of 30049913 is 31994003.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21270544 + 8779369 = 4612^2 + 2963^2 .

It is a cyclic number.

It is not a de Polignac number, because 30049913 - 2² = 30049909 is a prime.

It is not a weakly prime, because it can be changed into another prime (30049973) 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, 15024956 + 15024957.

It is an arithmetic number, because the mean of its divisors is an integer number (15024957).

Almost surely, 2^30049913 is an apocalyptic number.

It is an amenable number.

30049913 is a deficient number, since it is larger than the sum of its proper divisors (1).

30049913 is an equidigital number, since it uses as much as digits as its factorization.

30049913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 29.

The square root of 30049913 is about 5481.7800940935. The cubic root of 30049913 is about 310.8954787771.

The spelling of 30049913 in words is "thirty million, forty-nine thousand, nine hundred thirteen".