30366481 has 2 divisors, whose sum is σ = 30366482. Its totient is φ = 30366480.

The previous prime is 30366473. The next prime is 30366499. The reversal of 30366481 is 18466303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20657025 + 9709456 = 4545^2 + 3116^2 .

It is an emirp because it is prime and its reverse (18466303) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30366481 - 2³ = 30366473 is a prime.

It is a super-2 number, since 2×30366481² = 1844246336646722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30366421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15183240 + 15183241.

It is an arithmetic number, because the mean of its divisors is an integer number (15183241).

Almost surely, 2^30366481 is an apocalyptic number.

It is an amenable number.

30366481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30366481 is an equidigital number, since it uses as much as digits as its factorization.

30366481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 30366481 is about 5510.5790076906. The cubic root of 30366481 is about 311.9834016208.

The spelling of 30366481 in words is "thirty million, three hundred sixty-six thousand, four hundred eighty-one".