164205613 has 8 divisors (see below), whose sum is σ = 192913056. Its totient is φ = 137794800.

The previous prime is 164205583. The next prime is 164205617. The reversal of 164205613 is 316502461.

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

It is not a de Polignac number, because 164205613 - 2²¹ = 162108461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164205617) 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, 574003 + ... + 574288.

It is an arithmetic number, because the mean of its divisors is an integer number (24114132).

Almost surely, 2^164205613 is an apocalyptic number.

164205613 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

164205613 is a deficient number, since it is larger than the sum of its proper divisors (28707443).

164205613 is a wasteful number, since it uses less digits than its factorization.

164205613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1148315.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 164205613 is about 12814.2737991663. The cubic root of 164205613 is about 547.5990249219.

The spelling of 164205613 in words is "one hundred sixty-four million, two hundred five thousand, six hundred thirteen".