30570145 has 16 divisors (see below), whose sum is σ = 39090240. Its totient is φ = 22883904.

The previous prime is 30570143. The next prime is 30570173. The reversal of 30570145 is 54107503.

It is not a de Polignac number, because 30570145 - 2¹ = 30570143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30570143) by changing a digit.

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, 5947 + ... + 9823.

It is an arithmetic number, because the mean of its divisors is an integer number (2443140).

Almost surely, 2^30570145 is an apocalyptic number.

It is an amenable number.

30570145 is a deficient number, since it is larger than the sum of its proper divisors (8520095).

30570145 is a wasteful number, since it uses less digits than its factorization.

30570145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3984.

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 30570145 is about 5529.0274913406. The cubic root of 30570145 is about 312.6793253427.

Adding to 30570145 its reverse (54107503), we get a palindrome (84677648).

The spelling of 30570145 in words is "thirty million, five hundred seventy thousand, one hundred forty-five".