30732613 has 2 divisors, whose sum is σ = 30732614. Its totient is φ = 30732612.

The previous prime is 30732601. The next prime is 30732619. The reversal of 30732613 is 31623703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29615364 + 1117249 = 5442^2 + 1057^2 .

It is an emirp because it is prime and its reverse (31623703) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30732613 - 2²¹ = 28635461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30732619) 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, 15366306 + 15366307.

It is an arithmetic number, because the mean of its divisors is an integer number (15366307).

Almost surely, 2^30732613 is an apocalyptic number.

It is an amenable number.

30732613 is a deficient number, since it is larger than the sum of its proper divisors (1).

30732613 is an equidigital number, since it uses as much as digits as its factorization.

30732613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 25.

The square root of 30732613 is about 5543.7002985371. The cubic root of 30732613 is about 313.2322684716.

The spelling of 30732613 in words is "thirty million, seven hundred thirty-two thousand, six hundred thirteen".