164590533 has 6 divisors (see below), whose sum is σ = 237741894. Its totient is φ = 109727016.

The previous prime is 164590519. The next prime is 164590537. The reversal of 164590533 is 335095461.

164590533 is a `hidden beast` number, since 1 + 64 + 590 + 5 + 3 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 92968164 + 71622369 = 9642^2 + 8463^2 .

It is not a de Polignac number, because 164590533 - 2⁹ = 164590021 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164590537) 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 5 ways as a sum of consecutive naturals, for example, 9143910 + ... + 9143927.

It is an arithmetic number, because the mean of its divisors is an integer number (39623649).

Almost surely, 2^164590533 is an apocalyptic number.

It is an amenable number.

164590533 is a deficient number, since it is larger than the sum of its proper divisors (73151361).

164590533 is a wasteful number, since it uses less digits than its factorization.

164590533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18287843 (or 18287840 counting only the distinct ones).

The product of its (nonzero) digits is 48600, while the sum is 36.

The square root of 164590533 is about 12829.2841967118. The cubic root of 164590533 is about 548.0265728940.

The spelling of 164590533 in words is "one hundred sixty-four million, five hundred ninety thousand, five hundred thirty-three".