30497219 has 8 divisors (see below), whose sum is σ = 31437120. Its totient is φ = 29569536.

The previous prime is 30497209. The next prime is 30497221. The reversal of 30497219 is 91279403.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30497219 is a prime.

It is a super-2 number, since 2×30497219² = 1860160733467922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30497209) 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 7 ways as a sum of consecutive naturals, for example, 2147 + ... + 8099.

It is an arithmetic number, because the mean of its divisors is an integer number (3929640).

Almost surely, 2^30497219 is an apocalyptic number.

30497219 is a deficient number, since it is larger than the sum of its proper divisors (939901).

30497219 is a wasteful number, since it uses less digits than its factorization.

30497219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6109.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 30497219 is about 5522.4287229443. The cubic root of 30497219 is about 312.4304920608.

The spelling of 30497219 in words is "thirty million, four hundred ninety-seven thousand, two hundred nineteen".