30120485 has 4 divisors (see below), whose sum is σ = 36144588. Its totient is φ = 24096384.

The previous prime is 30120449. The next prime is 30120487. The reversal of 30120485 is 58402103.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58402103 = 5569 ⋅10487.

It can be written as a sum of positive squares in 2 ways, for example, as 5982916 + 24137569 = 2446^2 + 4913^2 .

It is a cyclic number.

It is not a de Polignac number, because 30120485 - 2¹² = 30116389 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 30120485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120487) 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 3 ways as a sum of consecutive naturals, for example, 3012044 + ... + 3012053.

It is an arithmetic number, because the mean of its divisors is an integer number (9036147).

Almost surely, 2^30120485 is an apocalyptic number.

It is an amenable number.

30120485 is a deficient number, since it is larger than the sum of its proper divisors (6024103).

30120485 is an equidigital number, since it uses as much as digits as its factorization.

30120485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6024102.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 30120485 is about 5488.2132793834. The cubic root of 30120485 is about 311.1386670840.

Adding to 30120485 its reverse (58402103), we get a palindrome (88522588).

The spelling of 30120485 in words is "thirty million, one hundred twenty thousand, four hundred eighty-five".