30564145 has 8 divisors (see below), whose sum is σ = 37014120. Its totient is φ = 24226560.

The previous prime is 30564143. The next prime is 30564187. The reversal of 30564145 is 54146503.

It can be written as a sum of positive squares in 4 ways, for example, as 1014049 + 29550096 = 1007^2 + 5436^2 .

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

It is not a de Polignac number, because 30564145 - 2¹ = 30564143 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30564143) 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, 27496 + ... + 28585.

It is an arithmetic number, because the mean of its divisors is an integer number (4626765).

Almost surely, 2^30564145 is an apocalyptic number.

It is an amenable number.

30564145 is a deficient number, since it is larger than the sum of its proper divisors (6449975).

30564145 is a wasteful number, since it uses less digits than its factorization.

30564145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56195.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 30564145 is about 5528.4848738149. The cubic root of 30564145 is about 312.6588674886.

The spelling of 30564145 in words is "thirty million, five hundred sixty-four thousand, one hundred forty-five".