30312241 has 4 divisors (see below), whose sum is σ = 32095332. Its totient is φ = 28529152.

The previous prime is 30312211. The next prime is 30312263. The reversal of 30312241 is 14221303.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14221303 = 83 ⋅171341.

It can be written as a sum of positive squares in 2 ways, for example, as 24206400 + 6105841 = 4920^2 + 2471^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30312241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30312211) 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, 891520 + ... + 891553.

It is an arithmetic number, because the mean of its divisors is an integer number (8023833).

Almost surely, 2^30312241 is an apocalyptic number.

It is an amenable number.

30312241 is a deficient number, since it is larger than the sum of its proper divisors (1783091).

30312241 is a wasteful number, since it uses less digits than its factorization.

30312241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1783090.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 30312241 is about 5505.6553651677. The cubic root of 30312241 is about 311.7975380810.

Adding to 30312241 its reverse (14221303), we get a palindrome (44533544).

It can be divided in two parts, 303 and 12241, that added together give a square (12544 = 112²).

The spelling of 30312241 in words is "thirty million, three hundred twelve thousand, two hundred forty-one".