30202481 has 2 divisors, whose sum is σ = 30202482. Its totient is φ = 30202480.

The previous prime is 30202453. The next prime is 30202517. The reversal of 30202481 is 18420203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21298225 + 8904256 = 4615^2 + 2984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30202481 is a prime.

It is a super-2 number, since 2×30202481² = 1824379717110722, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30202441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15101240 + 15101241.

It is an arithmetic number, because the mean of its divisors is an integer number (15101241).

Almost surely, 2^30202481 is an apocalyptic number.

It is an amenable number.

30202481 is a deficient number, since it is larger than the sum of its proper divisors (1).

30202481 is an equidigital number, since it uses as much as digits as its factorization.

30202481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 30202481 is about 5495.6783930649. The cubic root of 30202481 is about 311.4207454416.

Adding to 30202481 its reverse (18420203), we get a palindrome (48622684).

The spelling of 30202481 in words is "thirty million, two hundred two thousand, four hundred eighty-one".