30120573 has 16 divisors (see below), whose sum is σ = 46002816. Its totient is φ = 17172480.

The previous prime is 30120569. The next prime is 30120581. The reversal of 30120573 is 37502103.

It is a happy number.

It is not a de Polignac number, because 30120573 - 2² = 30120569 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30120533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9565 + ... + 12317.

It is an arithmetic number, because the mean of its divisors is an integer number (2875176).

Almost surely, 2^30120573 is an apocalyptic number.

It is an amenable number.

30120573 is a deficient number, since it is larger than the sum of its proper divisors (15882243).

30120573 is a wasteful number, since it uses less digits than its factorization.

30120573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3284.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 30120573 is about 5488.2212965587. The cubic root of 30120573 is about 311.1389700912.

Adding to 30120573 its reverse (37502103), we get a palindrome (67622676).

The spelling of 30120573 in words is "thirty million, one hundred twenty thousand, five hundred seventy-three".