30194977 has 2 divisors, whose sum is σ = 30194978. Its totient is φ = 30194976.

The previous prime is 30194959. The next prime is 30195013. The reversal of 30194977 is 77949103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29062881 + 1132096 = 5391^2 + 1064^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30194977 is a prime.

It is not a weakly prime, because it can be changed into another prime (30194077) 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, 15097488 + 15097489.

It is an arithmetic number, because the mean of its divisors is an integer number (15097489).

Almost surely, 2^30194977 is an apocalyptic number.

It is an amenable number.

30194977 is a deficient number, since it is larger than the sum of its proper divisors (1).

30194977 is an equidigital number, since it uses as much as digits as its factorization.

30194977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 30194977 is about 5494.9956323913. The cubic root of 30194977 is about 311.3949518119.

The spelling of 30194977 in words is "thirty million, one hundred ninety-four thousand, nine hundred seventy-seven".