30745901 has 2 divisors, whose sum is σ = 30745902. Its totient is φ = 30745900.

The previous prime is 30745889. The next prime is 30745907. The reversal of 30745901 is 10954703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17598025 + 13147876 = 4195^2 + 3626^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30745901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30745907) 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, 15372950 + 15372951.

It is an arithmetic number, because the mean of its divisors is an integer number (15372951).

Almost surely, 2^30745901 is an apocalyptic number.

It is an amenable number.

30745901 is a deficient number, since it is larger than the sum of its proper divisors (1).

30745901 is an equidigital number, since it uses as much as digits as its factorization.

30745901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 30745901 is about 5544.8986465038. The cubic root of 30745901 is about 313.2774065214.

The spelling of 30745901 in words is "thirty million, seven hundred forty-five thousand, nine hundred one".