30913601 has 2 divisors, whose sum is σ = 30913602. Its totient is φ = 30913600.

The previous prime is 30913583. The next prime is 30913607. The reversal of 30913601 is 10631903.

It is a Cunningham number, because it is equal to 5560²+1.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30913600 + 1 = 5560^2 + 1^2 .

It is an emirp because it is prime and its reverse (10631903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30913601 - 2¹⁰ = 30912577 is a prime.

It is equal to p_1911047 and since 30913601 and 1911047 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (30913607) 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, 15456800 + 15456801.

It is an arithmetic number, because the mean of its divisors is an integer number (15456801).

Almost surely, 2^30913601 is an apocalyptic number.

It is an amenable number.

30913601 is a deficient number, since it is larger than the sum of its proper divisors (1).

30913601 is an equidigital number, since it uses as much as digits as its factorization.

30913601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 23.

The square root of 30913601 is about 5560.0000899281. Note that the first 4 decimals coincide. The cubic root of 30913601 is about 313.8459526737.

The spelling of 30913601 in words is "thirty million, nine hundred thirteen thousand, six hundred one".