30130621 has 8 divisors (see below), whose sum is σ = 31527360. Its totient is φ = 28741152.

The previous prime is 30130603. The next prime is 30130627. The reversal of 30130621 is 12603103.

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

It is a cyclic number.

It is not a de Polignac number, because 30130621 - 2¹⁷ = 29999549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30130595 and 30130604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30130627) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7806 + ... + 11008.

It is an arithmetic number, because the mean of its divisors is an integer number (3940920).

Almost surely, 2^30130621 is an apocalyptic number.

It is an amenable number.

30130621 is a deficient number, since it is larger than the sum of its proper divisors (1396739).

30130621 is a wasteful number, since it uses less digits than its factorization.

30130621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3635.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 30130621 is about 5489.1366352096. The cubic root of 30130621 is about 311.1735641298.

Adding to 30130621 its reverse (12603103), we get a palindrome (42733724).

The spelling of 30130621 in words is "thirty million, one hundred thirty thousand, six hundred twenty-one".