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164625 = 353439
BaseRepresentation
bin101000001100010001
322100211020
4220030101
520232000
63310053
71253646
oct501421
9270736
10164625
1110275a
127b329
1359c16
1443dcd
1533ba0
hex28311

164625 has 16 divisors (see below), whose sum is σ = 274560. Its totient is φ = 87600.

The previous prime is 164623. The next prime is 164627. The reversal of 164625 is 526461.

It is an interprime number because it is at equal distance from previous prime (164623) and next prime (164627).

It is not a de Polignac number, because 164625 - 21 = 164623 is a prime.

It is a hoax number, since the sum of its digits (24) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 164595 and 164604.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 164625.

It is not an unprimeable number, because it can be changed into a prime (164621) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156 + ... + 594.

It is an arithmetic number, because the mean of its divisors is an integer number (17160).

2164625 is an apocalyptic number.

164625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

164625 is a deficient number, since it is larger than the sum of its proper divisors (109935).

164625 is an equidigital number, since it uses as much as digits as its factorization.

164625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457 (or 447 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 164625 is about 405.7400645734. The cubic root of 164625 is about 54.8064824413.

The spelling of 164625 in words is "one hundred sixty-four thousand, six hundred twenty-five".

Divisors: 1 3 5 15 25 75 125 375 439 1317 2195 6585 10975 32925 54875 164625