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164061 = 3218229
BaseRepresentation
bin101000000011011101
322100001100
4220003131
520222221
63303313
71252212
oct500335
9270040
10164061
11102297
127ab39
13598a1
1443b09
1533926
hex280dd

164061 has 6 divisors (see below), whose sum is σ = 236990. Its totient is φ = 109368.

The previous prime is 164057. The next prime is 164071. The reversal of 164061 is 160461.

It can be written as a sum of positive squares in only one way, i.e., 164025 + 36 = 405^2 + 6^2 .

It is not a de Polignac number, because 164061 - 22 = 164057 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 (164011) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9106 + ... + 9123.

2164061 is an apocalyptic number.

It is an amenable number.

164061 is a deficient number, since it is larger than the sum of its proper divisors (72929).

164061 is a wasteful number, since it uses less digits than its factorization.

164061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18235 (or 18232 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 164061 is about 405.0444420061. The cubic root of 164061 is about 54.7438224093.

Subtracting from 164061 its reverse (160461), we obtain a square (3600 = 602).

The spelling of 164061 in words is "one hundred sixty-four thousand, sixty-one".

Divisors: 1 3 9 18229 54687 164061