30540079 has 2 divisors, whose sum is σ = 30540080. Its totient is φ = 30540078.

The previous prime is 30540017. The next prime is 30540091. The reversal of 30540079 is 97004503.

It is a strong prime.

It is an emirp because it is prime and its reverse (97004503) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30540079 - 2¹³ = 30531887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30540179) 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, 15270039 + 15270040.

It is an arithmetic number, because the mean of its divisors is an integer number (15270040).

Almost surely, 2^30540079 is an apocalyptic number.

30540079 is a deficient number, since it is larger than the sum of its proper divisors (1).

30540079 is an equidigital number, since it uses as much as digits as its factorization.

30540079 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 28.

The square root of 30540079 is about 5526.3078994931. The cubic root of 30540079 is about 312.5767841186.

The spelling of 30540079 in words is "thirty million, five hundred forty thousand, seventy-nine".