164713649 has 8 divisors (see below), whose sum is σ = 177802560. Its totient is φ = 152118736.

The previous prime is 164713609. The next prime is 164713651. The reversal of 164713649 is 946317461.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-164713649 is a prime.

It is a super-3 number, since 3×164713649³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (164713609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122807 + ... + 124140.

It is an arithmetic number, because the mean of its divisors is an integer number (22225320).

Almost surely, 2^164713649 is an apocalyptic number.

It is an amenable number.

164713649 is a deficient number, since it is larger than the sum of its proper divisors (13088911).

164713649 is a wasteful number, since it uses less digits than its factorization.

164713649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246999.

The product of its digits is 108864, while the sum is 41.

The square root of 164713649 is about 12834.0815409596. The cubic root of 164713649 is about 548.1631826619.

The spelling of 164713649 in words is "one hundred sixty-four million, seven hundred thirteen thousand, six hundred forty-nine".