164500531 has 8 divisors (see below), whose sum is σ = 184857120. Its totient is φ = 145244352.

The previous prime is 164500507. The next prime is 164500543. The reversal of 164500531 is 135005461.

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

It is a cyclic number.

It is not a de Polignac number, because 164500531 - 2²⁷ = 30282803 is a prime.

It is a super-2 number, since 2×164500531² = 54120849398563922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 164500496 and 164500505.

It is not an unprimeable number, because it can be changed into a prime (164500561) 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, 274786 + ... + 275383.

It is an arithmetic number, because the mean of its divisors is an integer number (23107140).

Almost surely, 2^164500531 is an apocalyptic number.

164500531 is a deficient number, since it is larger than the sum of its proper divisors (20356589).

164500531 is a wasteful number, since it uses less digits than its factorization.

164500531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550205.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 164500531 is about 12825.7760388992. The cubic root of 164500531 is about 547.9266633795.

Adding to 164500531 its reverse (135005461), we get a palindrome (299505992).

The spelling of 164500531 in words is "one hundred sixty-four million, five hundred thousand, five hundred thirty-one".