30047245 has 16 divisors (see below), whose sum is σ = 38646720. Its totient is φ = 22345984.

The previous prime is 30047233. The next prime is 30047273. The reversal of 30047245 is 54274003.

It is a cyclic number.

It is not a de Polignac number, because 30047245 - 2⁷ = 30047117 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 4926 + ... + 9184.

It is an arithmetic number, because the mean of its divisors is an integer number (2415420).

Almost surely, 2^30047245 is an apocalyptic number.

It is an amenable number.

30047245 is a deficient number, since it is larger than the sum of its proper divisors (8599475).

30047245 is a wasteful number, since it uses less digits than its factorization.

30047245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4364.

The product of its (nonzero) digits is 3360, while the sum is 25.

The square root of 30047245 is about 5481.5367370839. The cubic root of 30047245 is about 310.8862774894.

The spelling of 30047245 in words is "thirty million, forty-seven thousand, two hundred forty-five".