30150191 has 2 divisors, whose sum is σ = 30150192. Its totient is φ = 30150190.

The previous prime is 30150179. The next prime is 30150209. The reversal of 30150191 is 19105103.

It is a weak prime.

It is an emirp because it is prime and its reverse (19105103) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30150191 - 2¹⁰ = 30149167 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30150101) 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, 15075095 + 15075096.

It is an arithmetic number, because the mean of its divisors is an integer number (15075096).

Almost surely, 2^30150191 is an apocalyptic number.

30150191 is a deficient number, since it is larger than the sum of its proper divisors (1).

30150191 is an equidigital number, since it uses as much as digits as its factorization.

30150191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 135, while the sum is 20.

The square root of 30150191 is about 5490.9189576973. The cubic root of 30150191 is about 311.2409191826.

Adding to 30150191 its reverse (19105103), we get a palindrome (49255294).

The spelling of 30150191 in words is "thirty million, one hundred fifty thousand, one hundred ninety-one".