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BaseRepresentation
bin101000001010000101
322100122001
4220022011
520230420
63305301
71253356
oct501205
9270561
10164485
11102642
127b231
1359b39
1443d2d
1533b0a
hex28285

164485 has 8 divisors (see below), whose sum is σ = 200736. Its totient is φ = 129360.

The previous prime is 164477. The next prime is 164503. The reversal of 164485 is 584461.

164485 = T254 + T255 + ... + T258.

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

It is not a de Polignac number, because 164485 - 23 = 164477 is a prime.

It is a Duffinian number.

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, 90 + ... + 580.

It is an arithmetic number, because the mean of its divisors is an integer number (25092).

2164485 is an apocalyptic number.

It is an amenable number.

164485 is a deficient number, since it is larger than the sum of its proper divisors (36251).

164485 is an equidigital number, since it uses as much as digits as its factorization.

164485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 563.

The product of its digits is 3840, while the sum is 28.

The square root of 164485 is about 405.5675036292. The cubic root of 164485 is about 54.7909419024.

The spelling of 164485 in words is "one hundred sixty-four thousand, four hundred eighty-five".

Divisors: 1 5 67 335 491 2455 32897 164485