30317189 has 4 divisors (see below), whose sum is σ = 34648224. Its totient is φ = 25986156.

The previous prime is 30317153. The next prime is 30317201. The reversal of 30317189 is 98171303.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98171303 = 1619 ⋅60637.

It is a de Polignac number, because none of the positive numbers 2^k-30317189 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 (30317129) 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 in 3 ways as a sum of consecutive naturals, for example, 2165507 + ... + 2165520.

It is an arithmetic number, because the mean of its divisors is an integer number (8662056).

Almost surely, 2^30317189 is an apocalyptic number.

It is an amenable number.

30317189 is a deficient number, since it is larger than the sum of its proper divisors (4331035).

30317189 is an equidigital number, since it uses as much as digits as its factorization.

30317189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4331034.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 30317189 is about 5506.1047029638. The cubic root of 30317189 is about 311.8145025177.

The spelling of 30317189 in words is "thirty million, three hundred seventeen thousand, one hundred eighty-nine".