30500197 has 12 divisors (see below), whose sum is σ = 38209836. Its totient is φ = 24131520.

The previous prime is 30500189. The next prime is 30500207. The reversal of 30500197 is 79100503.

It can be written as a sum of positive squares in 2 ways, for example, as 16370116 + 14130081 = 4046^2 + 3759^2 .

It is not a de Polignac number, because 30500197 - 2³ = 30500189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30500117) 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 11 ways as a sum of consecutive naturals, for example, 23304 + ... + 24577.

It is an arithmetic number, because the mean of its divisors is an integer number (3184153).

Almost surely, 2^30500197 is an apocalyptic number.

It is an amenable number.

30500197 is a deficient number, since it is larger than the sum of its proper divisors (7709639).

30500197 is a wasteful number, since it uses less digits than its factorization.

30500197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47908 (or 47901 counting only the distinct ones).

The product of its (nonzero) digits is 945, while the sum is 25.

The square root of 30500197 is about 5522.6983441068. The cubic root of 30500197 is about 312.4406611599.

The spelling of 30500197 in words is "thirty million, five hundred thousand, one hundred ninety-seven".