30386137 has 2 divisors, whose sum is σ = 30386138. Its totient is φ = 30386136.

The previous prime is 30386129. The next prime is 30386141. The reversal of 30386137 is 73168303.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27499536 + 2886601 = 5244^2 + 1699^2 .

It is a cyclic number.

It is not a de Polignac number, because 30386137 - 2³ = 30386129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30386099 and 30386108.

It is not a weakly prime, because it can be changed into another prime (30386117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15193068 + 15193069.

It is an arithmetic number, because the mean of its divisors is an integer number (15193069).

Almost surely, 2^30386137 is an apocalyptic number.

It is an amenable number.

30386137 is a deficient number, since it is larger than the sum of its proper divisors (1).

30386137 is an equidigital number, since it uses as much as digits as its factorization.

30386137 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 31.

The square root of 30386137 is about 5512.3621978241. The cubic root of 30386137 is about 312.0507019563.

The spelling of 30386137 in words is "thirty million, three hundred eighty-six thousand, one hundred thirty-seven".