30050137 has 4 divisors (see below), whose sum is σ = 32361700. Its totient is φ = 27738576.

The previous prime is 30050107. The next prime is 30050143. The reversal of 30050137 is 73105003.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 19219456 + 10830681 = 4384^2 + 3291^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30050137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30050107) 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 in 3 ways as a sum of consecutive naturals, for example, 1155762 + ... + 1155787.

It is an arithmetic number, because the mean of its divisors is an integer number (8090425).

Almost surely, 2^30050137 is an apocalyptic number.

It is an amenable number.

30050137 is a deficient number, since it is larger than the sum of its proper divisors (2311563).

30050137 is a wasteful number, since it uses less digits than its factorization.

30050137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2311562.

The product of its (nonzero) digits is 315, while the sum is 19.

The square root of 30050137 is about 5481.8005253749. The cubic root of 30050137 is about 310.8962512743.

The spelling of 30050137 in words is "thirty million, fifty thousand, one hundred thirty-seven".