30605245 has 8 divisors (see below), whose sum is σ = 40065120. Its totient is φ = 22258320.

The previous prime is 30605233. The next prime is 30605261. The reversal of 30605245 is 54250603.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 30605245 - 2⁵ = 30605213 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 (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 278175 + ... + 278284.

It is an arithmetic number, because the mean of its divisors is an integer number (5008140).

Almost surely, 2^30605245 is an apocalyptic number.

It is an amenable number.

30605245 is a deficient number, since it is larger than the sum of its proper divisors (9459875).

30605245 is a wasteful number, since it uses less digits than its factorization.

30605245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556475.

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 30605245 is about 5532.2007375004. The cubic root of 30605245 is about 312.7989501876.

Adding to 30605245 its reverse (54250603), we get a palindrome (84855848).

The spelling of 30605245 in words is "thirty million, six hundred five thousand, two hundred forty-five".