30664137 has 16 divisors (see below), whose sum is σ = 46811520. Its totient is φ = 17490432.

The previous prime is 30664111. The next prime is 30664147. The reversal of 30664137 is 73146603.

It is not a de Polignac number, because 30664137 - 2¹¹ = 30662089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30664147) 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, 15289 + ... + 17177.

It is an arithmetic number, because the mean of its divisors is an integer number (2925720).

Almost surely, 2^30664137 is an apocalyptic number.

It is an amenable number.

30664137 is a deficient number, since it is larger than the sum of its proper divisors (16147383).

30664137 is a wasteful number, since it uses less digits than its factorization.

30664137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2672.

The product of its (nonzero) digits is 9072, while the sum is 30.

The square root of 30664137 is about 5537.5208351753. The cubic root of 30664137 is about 312.9994556092. Note that the first 3 decimals are identical.

The spelling of 30664137 in words is "thirty million, six hundred sixty-four thousand, one hundred thirty-seven".