30740533 has 2 divisors, whose sum is σ = 30740534. Its totient is φ = 30740532.

The previous prime is 30740531. The next prime is 30740569. The reversal of 30740533 is 33504703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25979409 + 4761124 = 5097^2 + 2182^2 .

It is an emirp because it is prime and its reverse (33504703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30740533 - 2¹ = 30740531 is a prime.

Together with 30740531, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 30740498 and 30740507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30740531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15370266 + 15370267.

It is an arithmetic number, because the mean of its divisors is an integer number (15370267).

Almost surely, 2^30740533 is an apocalyptic number.

It is an amenable number.

30740533 is a deficient number, since it is larger than the sum of its proper divisors (1).

30740533 is an equidigital number, since it uses as much as digits as its factorization.

30740533 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 25.

The square root of 30740533 is about 5544.4145768512. The cubic root of 30740533 is about 313.2591735110.

The spelling of 30740533 in words is "thirty million, seven hundred forty thousand, five hundred thirty-three".