30083145 has 16 divisors (see below), whose sum is σ = 48487680. Its totient is φ = 15926144.

The previous prime is 30083111. The next prime is 30083161. The reversal of 30083145 is 54138003.

It is a cyclic number.

It is not a de Polignac number, because 30083145 - 2¹¹ = 30081097 is a prime.

It is a super-2 number, since 2×30083145² = 1809991226182050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5265 + ... + 9374.

It is an arithmetic number, because the mean of its divisors is an integer number (3030480).

Almost surely, 2^30083145 is an apocalyptic number.

It is an amenable number.

30083145 is a deficient number, since it is larger than the sum of its proper divisors (18404535).

30083145 is a wasteful number, since it uses less digits than its factorization.

30083145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14784.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 30083145 is about 5484.8103887008. The cubic root of 30083145 is about 311.0100423069.

The spelling of 30083145 in words is "thirty million, eighty-three thousand, one hundred forty-five".