30504145 has 16 divisors (see below), whose sum is σ = 42410880. Its totient is φ = 20628864.

The previous prime is 30504119. The next prime is 30504151. The reversal of 30504145 is 54140503.

It is a cyclic number.

It is not a de Polignac number, because 30504145 - 2⁷ = 30504017 is a prime.

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, 3415 + ... + 8524.

It is an arithmetic number, because the mean of its divisors is an integer number (2650680).

Almost surely, 2^30504145 is an apocalyptic number.

30504145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30504145 is a deficient number, since it is larger than the sum of its proper divisors (11906735).

30504145 is a wasteful number, since it uses less digits than its factorization.

30504145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12024.

The product of its (nonzero) digits is 1200, while the sum is 22.

The square root of 30504145 is about 5523.0557665119. The cubic root of 30504145 is about 312.4541415374.

Adding to 30504145 its reverse (54140503), we get a palindrome (84644648).

The spelling of 30504145 in words is "thirty million, five hundred four thousand, one hundred forty-five".