30122137 has 2 divisors, whose sum is σ = 30122138. Its totient is φ = 30122136.

The previous prime is 30122123. The next prime is 30122153. The reversal of 30122137 is 73122103.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19501056 + 10621081 = 4416^2 + 3259^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30122137 is a prime.

It is not a weakly prime, because it can be changed into another prime (30122117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15061068 + 15061069.

It is an arithmetic number, because the mean of its divisors is an integer number (15061069).

Almost surely, 2^30122137 is an apocalyptic number.

It is an amenable number.

30122137 is a deficient number, since it is larger than the sum of its proper divisors (1).

30122137 is an equidigital number, since it uses as much as digits as its factorization.

30122137 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 19.

The square root of 30122137 is about 5488.3637816748. The cubic root of 30122137 is about 311.1443552580.

The spelling of 30122137 in words is "thirty million, one hundred twenty-two thousand, one hundred thirty-seven".