30482281 has 2 divisors, whose sum is σ = 30482282. Its totient is φ = 30482280.

The previous prime is 30482239. The next prime is 30482293. The reversal of 30482281 is 18228403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30470400 + 11881 = 5520^2 + 109^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30482281 is a prime.

It is a super-2 number, since 2×30482281² = 1858338909925922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30482201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15241140 + 15241141.

It is an arithmetic number, because the mean of its divisors is an integer number (15241141).

Almost surely, 2^30482281 is an apocalyptic number.

It is an amenable number.

30482281 is a deficient number, since it is larger than the sum of its proper divisors (1).

30482281 is an equidigital number, since it uses as much as digits as its factorization.

30482281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 28.

The square root of 30482281 is about 5521.0760726511. The cubic root of 30482281 is about 312.3794726668.

It can be divided in two parts, 3048 and 2281, that added together give a square (5329 = 73²).

The spelling of 30482281 in words is "thirty million, four hundred eighty-two thousand, two hundred eighty-one".