164535243 has 8 divisors (see below), whose sum is σ = 224482368. Its totient is φ = 107139144.

The previous prime is 164535233. The next prime is 164535251. The reversal of 164535243 is 342535461.

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

It is not a de Polignac number, because 164535243 - 2⁴ = 164535227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (164535223) 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 7 ways as a sum of consecutive naturals, for example, 637605 + ... + 637862.

It is an arithmetic number, because the mean of its divisors is an integer number (28060296).

Almost surely, 2^164535243 is an apocalyptic number.

164535243 is a deficient number, since it is larger than the sum of its proper divisors (59947125).

164535243 is a wasteful number, since it uses less digits than its factorization.

164535243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1275513.

The product of its digits is 43200, while the sum is 33.

The square root of 164535243 is about 12827.1291799841. The cubic root of 164535243 is about 547.9652008289.

The spelling of 164535243 in words is "one hundred sixty-four million, five hundred thirty-five thousand, two hundred forty-three".