30282157 has 2 divisors, whose sum is σ = 30282158. Its totient is φ = 30282156.

The previous prime is 30282107. The next prime is 30282179. The reversal of 30282157 is 75128203.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29387241 + 894916 = 5421^2 + 946^2 .

It is a cyclic number.

It is not a de Polignac number, because 30282157 - 2¹¹ = 30280109 is a prime.

It is a Chen prime.

It is equal to p_1874314 and since 30282157 and 1874314 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30282107) 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, 15141078 + 15141079.

It is an arithmetic number, because the mean of its divisors is an integer number (15141079).

Almost surely, 2^30282157 is an apocalyptic number.

It is an amenable number.

30282157 is a deficient number, since it is larger than the sum of its proper divisors (1).

30282157 is an equidigital number, since it uses as much as digits as its factorization.

30282157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3360, while the sum is 28.

The square root of 30282157 is about 5502.9225871349. The cubic root of 30282157 is about 311.6943540020.

The spelling of 30282157 in words is "thirty million, two hundred eighty-two thousand, one hundred fifty-seven".