30205001 has 2 divisors, whose sum is σ = 30205002. Its totient is φ = 30205000.

The previous prime is 30204961. The next prime is 30205009. The reversal of 30205001 is 10050203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19149376 + 11055625 = 4376^2 + 3325^2 .

It is an emirp because it is prime and its reverse (10050203) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30205001 is a prime.

It is not a weakly prime, because it can be changed into another prime (30205009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15102500 + 15102501.

It is an arithmetic number, because the mean of its divisors is an integer number (15102501).

Almost surely, 2^30205001 is an apocalyptic number.

It is an amenable number.

30205001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30205001 is an equidigital number, since it uses as much as digits as its factorization.

30205001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 30205001 is about 5495.9076593407. The cubic root of 30205001 is about 311.4294065232.

Adding to 30205001 its reverse (10050203), we get a palindrome (40255204).

The spelling of 30205001 in words is "thirty million, two hundred five thousand, one".