30461121 has 6 divisors (see below), whose sum is σ = 43999410. Its totient is φ = 20307408.

The previous prime is 30461099. The next prime is 30461141. The reversal of 30461121 is 12116403.

It is a happy number.

30461121 is a `hidden beast` number, since 30 + 4 + 611 + 21 = 666.

It can be written as a sum of positive squares in only one way, i.e., 30371121 + 90000 = 5511^2 + 300^2 .

It is not a de Polignac number, because 30461121 - 2¹⁹ = 29936833 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30461094 and 30461103.

It is not an unprimeable number, because it can be changed into a prime (30461141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1692276 + ... + 1692293.

It is an arithmetic number, because the mean of its divisors is an integer number (7333235).

Almost surely, 2^30461121 is an apocalyptic number.

It is an amenable number.

30461121 is a deficient number, since it is larger than the sum of its proper divisors (13538289).

30461121 is a wasteful number, since it uses less digits than its factorization.

30461121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384575 (or 3384572 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 30461121 is about 5519.1594468723. The cubic root of 30461121 is about 312.3071740559.

Adding to 30461121 its reverse (12116403), we get a palindrome (42577524).

It can be divided in two parts, 304 and 61121, that added together give a triangular number (61425 = T₃₅₀).

The spelling of 30461121 in words is "thirty million, four hundred sixty-one thousand, one hundred twenty-one".