30195029 has 2 divisors, whose sum is σ = 30195030. Its totient is φ = 30195028.

The previous prime is 30195013. The next prime is 30195037. The reversal of 30195029 is 92059103.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30195025 + 4 = 5495^2 + 2^2 .

It is a cyclic number.

It is not a de Polignac number, because 30195029 - 2⁴ = 30195013 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is equal to p_1869230 and since 30195029 and 1869230 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 30194992 and 30195010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30195059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15097514 + 15097515.

It is an arithmetic number, because the mean of its divisors is an integer number (15097515).

Almost surely, 2^30195029 is an apocalyptic number.

It is an amenable number.

30195029 is a deficient number, since it is larger than the sum of its proper divisors (1).

30195029 is an equidigital number, since it uses as much as digits as its factorization.

30195029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2430, while the sum is 29.

The square root of 30195029 is about 5495.0003639672. Note that the first 3 decimals coincide. The cubic root of 30195029 is about 311.3951305671.

The spelling of 30195029 in words is "thirty million, one hundred ninety-five thousand, twenty-nine".