30027121 has 4 divisors (see below), whose sum is σ = 31332672. Its totient is φ = 28721572.

The previous prime is 30027103. The next prime is 30027131. The reversal of 30027121 is 12172003.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 30027121 - 2⁹ = 30026609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30027095 and 30027104.

It is not an unprimeable number, because it can be changed into a prime (30027131) 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, 652741 + ... + 652786.

It is an arithmetic number, because the mean of its divisors is an integer number (7833168).

Almost surely, 2^30027121 is an apocalyptic number.

It is an amenable number.

30027121 is a deficient number, since it is larger than the sum of its proper divisors (1305551).

30027121 is a wasteful number, since it uses less digits than its factorization.

30027121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1305550.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 30027121 is about 5479.7008130007. The cubic root of 30027121 is about 310.8168571186.

Adding to 30027121 its reverse (12172003), we get a palindrome (42199124).

The spelling of 30027121 in words is "thirty million, twenty-seven thousand, one hundred twenty-one".