30199517 has 2 divisors, whose sum is σ = 30199518. Its totient is φ = 30199516.

The previous prime is 30199471. The next prime is 30199523. The reversal of 30199517 is 71599103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29822521 + 376996 = 5461^2 + 614^2 .

It is an emirp because it is prime and its reverse (71599103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30199517 - 2¹⁴ = 30183133 is a prime.

It is a Chen prime.

It is equal to p_1869506 and since 30199517 and 1869506 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30199537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15099758 + 15099759.

It is an arithmetic number, because the mean of its divisors is an integer number (15099759).

Almost surely, 2^30199517 is an apocalyptic number.

It is an amenable number.

30199517 is a deficient number, since it is larger than the sum of its proper divisors (1).

30199517 is an equidigital number, since it uses as much as digits as its factorization.

30199517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8505, while the sum is 35.

The square root of 30199517 is about 5495.4087200135. The cubic root of 30199517 is about 311.4105577434.

The spelling of 30199517 in words is "thirty million, one hundred ninety-nine thousand, five hundred seventeen".