30663530137 has 4 divisors (see below), whose sum is σ = 30664953396. Its totient is φ = 30662106880.

The previous prime is 30663530111. The next prime is 30663530159. The reversal of 30663530137 is 73103536603.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 73103536603 = 29 ⋅2520811607.

It can be written as a sum of positive squares in 2 ways, for example, as 7649426521 + 23014103616 = 87461^2 + 151704^2 .

It is a cyclic number.

It is not a de Polignac number, because 30663530137 - 2²³ = 30655141529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30663530096 and 30663530105.

It is not an unprimeable number, because it can be changed into a prime (30663530837) 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 in 3 ways as a sum of consecutive naturals, for example, 678808 + ... + 722569.

It is an arithmetic number, because the mean of its divisors is an integer number (7666238349).

Almost surely, 2^30663530137 is an apocalyptic number.

It is an amenable number.

30663530137 is a deficient number, since it is larger than the sum of its proper divisors (1423259).

30663530137 is a wasteful number, since it uses less digits than its factorization.

30663530137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1423258.

The product of its (nonzero) digits is 102060, while the sum is 37.

The spelling of 30663530137 in words is "thirty billion, six hundred sixty-three million, five hundred thirty thousand, one hundred thirty-seven".