164515 has 8 divisors (see below), whose sum is σ = 212688. Its totient is φ = 121440.

The previous prime is 164513. The next prime is 164531. The reversal of 164515 is 515461.

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

It is not a de Polignac number, because 164515 - 2¹ = 164513 is a prime.

It is a Duffinian number.

164515 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164513) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1201 + ... + 1330.

It is an arithmetic number, because the mean of its divisors is an integer number (26586).

2¹⁶⁴⁵¹⁵ is an apocalyptic number.

164515 is a deficient number, since it is larger than the sum of its proper divisors (48173).

164515 is a wasteful number, since it uses less digits than its factorization.

164515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2549.

The product of its digits is 600, while the sum is 22.

The square root of 164515 is about 405.6044871547. The cubic root of 164515 is about 54.7942727600.

Adding to 164515 its reverse (515461), we get a palindrome (679976).

It can be divided in two parts, 1 and 64515, that added together give a square (64516 = 254²).

The spelling of 164515 in words is "one hundred sixty-four thousand, five hundred fifteen".