30085145 has 8 divisors (see below), whose sum is σ = 36174600. Its totient is φ = 24019840.

The previous prime is 30085141. The next prime is 30085147. The reversal of 30085145 is 54158003.

It can be written as a sum of positive squares in 4 ways, for example, as 7198489 + 22886656 = 2683^2 + 4784^2 .

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

It is not a de Polignac number, because 30085145 - 2² = 30085141 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30085141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3170 + ... + 8379.

It is an arithmetic number, because the mean of its divisors is an integer number (4521825).

Almost surely, 2^30085145 is an apocalyptic number.

It is an amenable number.

30085145 is a deficient number, since it is larger than the sum of its proper divisors (6089455).

30085145 is a wasteful number, since it uses less digits than its factorization.

30085145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12075.

The product of its (nonzero) digits is 2400, while the sum is 26.

The square root of 30085145 is about 5484.9927073789. The cubic root of 30085145 is about 311.0169343867.

The spelling of 30085145 in words is "thirty million, eighty-five thousand, one hundred forty-five".