30145180 has 72 divisors (see below), whose sum is σ = 72154656. Its totient is φ = 10496640.

The previous prime is 30145169. The next prime is 30145207. The reversal of 30145180 is 8154103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 424545 + ... + 424615.

It is an arithmetic number, because the mean of its divisors is an integer number (1002148).

Almost surely, 2^30145180 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30145180, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36077328).

30145180 is an abundant number, since it is smaller than the sum of its proper divisors (42009476).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30145180 is a wasteful number, since it uses less digits than its factorization.

30145180 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 30145180 is about 5490.4626398875. The cubic root of 30145180 is about 311.2236753487.

Adding to 30145180 its reverse (8154103), we get a palindrome (38299283).

The spelling of 30145180 in words is "thirty million, one hundred forty-five thousand, one hundred eighty".