30805741 has 2 divisors, whose sum is σ = 30805742. Its totient is φ = 30805740.

The previous prime is 30805703. The next prime is 30805769. The reversal of 30805741 is 14750803.

It is an a-pointer prime, because the next prime (30805769) can be obtained adding 30805741 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18096516 + 12709225 = 4254^2 + 3565^2 .

It is a cyclic number.

It is not a de Polignac number, because 30805741 - 2¹⁹ = 30281453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30805771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15402870 + 15402871.

It is an arithmetic number, because the mean of its divisors is an integer number (15402871).

Almost surely, 2^30805741 is an apocalyptic number.

It is an amenable number.

30805741 is a deficient number, since it is larger than the sum of its proper divisors (1).

30805741 is an equidigital number, since it uses as much as digits as its factorization.

30805741 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30805741 is about 5550.2919743019. The cubic root of 30805741 is about 313.4805162105.

The spelling of 30805741 in words is "thirty million, eight hundred five thousand, seven hundred forty-one".