30539137 has 16 divisors (see below), whose sum is σ = 33264000. Its totient is φ = 27941760.

The previous prime is 30539111. The next prime is 30539141. The reversal of 30539137 is 73193503.

It is a cyclic number.

It is not a de Polignac number, because 30539137 - 2¹⁹ = 30014849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 30539099 and 30539108.

It is not an unprimeable number, because it can be changed into a prime (30539177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 153364 + ... + 153562.

It is an arithmetic number, because the mean of its divisors is an integer number (2079000).

Almost surely, 2^30539137 is an apocalyptic number.

It is an amenable number.

30539137 is a deficient number, since it is larger than the sum of its proper divisors (2724863).

30539137 is a wasteful number, since it uses less digits than its factorization.

30539137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 456.

The product of its (nonzero) digits is 8505, while the sum is 31.

The square root of 30539137 is about 5526.2226701428. Note that the first 3 decimals coincide. The cubic root of 30539137 is about 312.5735703050.

The spelling of 30539137 in words is "thirty million, five hundred thirty-nine thousand, one hundred thirty-seven".