30813001 has 2 divisors, whose sum is σ = 30813002. Its totient is φ = 30813000.

The previous prime is 30812989. The next prime is 30813007. The reversal of 30813001 is 10031803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27573001 + 3240000 = 5251^2 + 1800^2 .

It is a cyclic number.

It is not a de Polignac number, because 30813001 - 2⁹ = 30812489 is a prime.

It is not a weakly prime, because it can be changed into another prime (30813007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15406500 + 15406501.

It is an arithmetic number, because the mean of its divisors is an integer number (15406501).

Almost surely, 2^30813001 is an apocalyptic number.

It is an amenable number.

30813001 is a deficient number, since it is larger than the sum of its proper divisors (1).

30813001 is an equidigital number, since it uses as much as digits as its factorization.

30813001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 30813001 is about 5550.9459554206. The cubic root of 30813001 is about 313.5051402980.

Adding to 30813001 its reverse (10031803), we get a palindrome (40844804).

The spelling of 30813001 in words is "thirty million, eight hundred thirteen thousand, one".