30120170 has 8 divisors (see below), whose sum is σ = 54216324. Its totient is φ = 12048064.

The previous prime is 30120169. The next prime is 30120173. The reversal of 30120170 is 7102103.

It can be written as a sum of positive squares in 2 ways, for example, as 29019769 + 1100401 = 5387^2 + 1049^2 .

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

It is not an unprimeable number, because it can be changed into a prime (30120173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1505999 + ... + 1506018.

Almost surely, 2^30120170 is an apocalyptic number.

30120170 is a deficient number, since it is larger than the sum of its proper divisors (24096154).

30120170 is a wasteful number, since it uses less digits than its factorization.

30120170 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3012024.

The product of its (nonzero) digits is 42, while the sum is 14.

The square root of 30120170 is about 5488.1845814440. The cubic root of 30120170 is about 311.1375824509.

Adding to 30120170 its reverse (7102103), we get a palindrome (37222273).

The spelling of 30120170 in words is "thirty million, one hundred twenty thousand, one hundred seventy".