164608737 has 4 divisors (see below), whose sum is σ = 219478320. Its totient is φ = 109739156.

The previous prime is 164608721. The next prime is 164608747. The reversal of 164608737 is 737806461.

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 164608737 - 2⁴ = 164608721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164608747) 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, 27434787 + ... + 27434792.

It is an arithmetic number, because the mean of its divisors is an integer number (54869580).

Almost surely, 2^164608737 is an apocalyptic number.

It is an amenable number.

164608737 is a deficient number, since it is larger than the sum of its proper divisors (54869583).

164608737 is an equidigital number, since it uses as much as digits as its factorization.

164608737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54869582.

The product of its (nonzero) digits is 169344, while the sum is 42.

The square root of 164608737 is about 12829.9936476991. The cubic root of 164608737 is about 548.0467763808.

The spelling of 164608737 in words is "one hundred sixty-four million, six hundred eight thousand, seven hundred thirty-seven".