30814481 has 2 divisors, whose sum is σ = 30814482. Its totient is φ = 30814480.

The previous prime is 30814471. The next prime is 30814499. The reversal of 30814481 is 18441803.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29604481 + 1210000 = 5441^2 + 1100^2 .

It is a cyclic number.

It is not a de Polignac number, because 30814481 - 2¹⁸ = 30552337 is a prime.

It is a super-2 number, since 2×30814481² = 1899064478598722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30814471) 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 as a sum of consecutive naturals, namely, 15407240 + 15407241.

It is an arithmetic number, because the mean of its divisors is an integer number (15407241).

Almost surely, 2^30814481 is an apocalyptic number.

It is an amenable number.

30814481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30814481 is an equidigital number, since it uses as much as digits as its factorization.

30814481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 30814481 is about 5551.0792644314. The cubic root of 30814481 is about 313.5101596098.

The spelling of 30814481 in words is "thirty million, eight hundred fourteen thousand, four hundred eighty-one".