30450197 has 2 divisors, whose sum is σ = 30450198. Its totient is φ = 30450196.

The previous prime is 30450191. The next prime is 30450209. The reversal of 30450197 is 79105403.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24344356 + 6105841 = 4934^2 + 2471^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30450197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30450191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15225098 + 15225099.

It is an arithmetic number, because the mean of its divisors is an integer number (15225099).

Almost surely, 2^30450197 is an apocalyptic number.

It is an amenable number.

30450197 is a deficient number, since it is larger than the sum of its proper divisors (1).

30450197 is an equidigital number, since it uses as much as digits as its factorization.

30450197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 29.

The square root of 30450197 is about 5518.1697146790. The cubic root of 30450197 is about 312.2698362805.

The spelling of 30450197 in words is "thirty million, four hundred fifty thousand, one hundred ninety-seven".