30506045 has 8 divisors (see below), whose sum is σ = 36931896. Its totient is φ = 24188416.

The previous prime is 30506033. The next prime is 30506059. The reversal of 30506045 is 54060503.

It can be written as a sum of positive squares in 4 ways, for example, as 3247204 + 27258841 = 1802^2 + 5221^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 30506045 - 2⁴ = 30506029 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30506045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26432 + ... + 27561.

It is an arithmetic number, because the mean of its divisors is an integer number (4616487).

Almost surely, 2^30506045 is an apocalyptic number.

It is an amenable number.

30506045 is a deficient number, since it is larger than the sum of its proper divisors (6425851).

30506045 is a wasteful number, since it uses less digits than its factorization.

30506045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54111.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 30506045 is about 5523.2277700634. The cubic root of 30506045 is about 312.4606286399.

Adding to 30506045 its reverse (54060503), we get a palindrome (84566548).

The spelling of 30506045 in words is "thirty million, five hundred six thousand, forty-five".