164290605 has 8 divisors (see below), whose sum is σ = 262864992. Its totient is φ = 87621648.

The previous prime is 164290603. The next prime is 164290613. The reversal of 164290605 is 506092461.

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

It is not a de Polignac number, because 164290605 - 2¹ = 164290603 is a prime.

It is a super-3 number, since 3×164290605³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (164290603) 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, 5476339 + ... + 5476368.

It is an arithmetic number, because the mean of its divisors is an integer number (32858124).

Almost surely, 2^164290605 is an apocalyptic number.

164290605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164290605 is a deficient number, since it is larger than the sum of its proper divisors (98574387).

164290605 is a wasteful number, since it uses less digits than its factorization.

164290605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10952715.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 164290605 is about 12817.5896720093. The cubic root of 164290605 is about 547.6934867939.

The spelling of 164290605 in words is "one hundred sixty-four million, two hundred ninety thousand, six hundred five".