30130445 has 4 divisors (see below), whose sum is σ = 36156540. Its totient is φ = 24104352.

The previous prime is 30130439. The next prime is 30130453. The reversal of 30130445 is 54403103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54403103 = 191 ⋅284833.

It can be written as a sum of positive squares in 2 ways, for example, as 18645124 + 11485321 = 4318^2 + 3389^2 .

It is a cyclic number.

It is not a de Polignac number, because 30130445 - 2⁶ = 30130381 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3013040 + ... + 3013049.

It is an arithmetic number, because the mean of its divisors is an integer number (9039135).

Almost surely, 2^30130445 is an apocalyptic number.

It is an amenable number.

30130445 is a deficient number, since it is larger than the sum of its proper divisors (6026095).

30130445 is an equidigital number, since it uses as much as digits as its factorization.

30130445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6026094.

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 30130445 is about 5489.1206035211. The cubic root of 30130445 is about 311.1729582495.

Adding to 30130445 its reverse (54403103), we get a palindrome (84533548).

The spelling of 30130445 in words is "thirty million, one hundred thirty thousand, four hundred forty-five".