30500137 has 4 divisors (see below), whose sum is σ = 30514176. Its totient is φ = 30486100.

The previous prime is 30500117. The next prime is 30500177. The reversal of 30500137 is 73100503.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 30500137 - 2⁷ = 30500009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30500117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2989 + ... + 8362.

It is an arithmetic number, because the mean of its divisors is an integer number (7628544).

Almost surely, 2^30500137 is an apocalyptic number.

It is an amenable number.

30500137 is a deficient number, since it is larger than the sum of its proper divisors (14039).

30500137 is a wasteful number, since it uses less digits than its factorization.

30500137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14038.

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

The square root of 30500137 is about 5522.6929119769. The cubic root of 30500137 is about 312.4404562819.

The spelling of 30500137 in words is "thirty million, five hundred thousand, one hundred thirty-seven".