30538117 has 2 divisors, whose sum is σ = 30538118. Its totient is φ = 30538116.

The previous prime is 30538097. The next prime is 30538141. The reversal of 30538117 is 71183503.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 20079361 + 10458756 = 4481^2 + 3234^2 .

It is a cyclic number.

It is not a de Polignac number, because 30538117 - 2¹¹ = 30536069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30538147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15269058 + 15269059.

It is an arithmetic number, because the mean of its divisors is an integer number (15269059).

Almost surely, 2^30538117 is an apocalyptic number.

It is an amenable number.

30538117 is a deficient number, since it is larger than the sum of its proper divisors (1).

30538117 is an equidigital number, since it uses as much as digits as its factorization.

30538117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 30538117 is about 5526.1303821028. The cubic root of 30538117 is about 312.5700903050.

The spelling of 30538117 in words is "thirty million, five hundred thirty-eight thousand, one hundred seventeen".