164261285 has 8 divisors (see below), whose sum is σ = 205683840. Its totient is φ = 125695504.

The previous prime is 164261267. The next prime is 164261291. The reversal of 164261285 is 582162461.

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 164261285 - 2⁸ = 164261029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 714065 + ... + 714294.

It is an arithmetic number, because the mean of its divisors is an integer number (25710480).

Almost surely, 2^164261285 is an apocalyptic number.

It is an amenable number.

164261285 is a deficient number, since it is larger than the sum of its proper divisors (41422555).

164261285 is a wasteful number, since it uses less digits than its factorization.

164261285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1428387.

The product of its digits is 23040, while the sum is 35.

The square root of 164261285 is about 12816.4458801963. The cubic root of 164261285 is about 547.6609036192.

The spelling of 164261285 in words is "one hundred sixty-four million, two hundred sixty-one thousand, two hundred eighty-five".