30538197 has 12 divisors (see below), whose sum is σ = 44341804. Its totient is φ = 20252160.

The previous prime is 30538159. The next prime is 30538199. The reversal of 30538197 is 79183503.

30538197 is a `hidden beast` number, since 30 + 538 + 1 + 97 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 7584516 + 22953681 = 2754^2 + 4791^2 .

It is not a de Polignac number, because 30538197 - 2¹⁶ = 30472661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30538199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7054 + ... + 10527.

Almost surely, 2^30538197 is an apocalyptic number.

It is an amenable number.

30538197 is a deficient number, since it is larger than the sum of its proper divisors (13803607).

30538197 is a wasteful number, since it uses less digits than its factorization.

30538197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17780 (or 17777 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 30538197 is about 5526.1376204362. The cubic root of 30538197 is about 312.5703632490.

The spelling of 30538197 in words is "thirty million, five hundred thirty-eight thousand, one hundred ninety-seven".