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167201 = 612741

167201 has 4 divisors (see below), whose sum is σ = 170004. Its totient is φ = 164400.

The previous prime is 167197. The next prime is 167213. The reversal of 167201 is 102761.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 22801 + 144400 = 151^2 + 380^2 .

It is a cyclic number.

It is not a de Polignac number, because 167201 - 22 = 167197 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 167201.

It is not an unprimeable number, because it can be changed into a prime (167221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310 + ... + 1431.

It is an arithmetic number, because the mean of its divisors is an integer number (42501).

2167201 is an apocalyptic number.

It is an amenable number.

167201 is a deficient number, since it is larger than the sum of its proper divisors (2803).

167201 is an equidigital number, since it uses as much as digits as its factorization.

167201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802.

The product of its (nonzero) digits is 84, while the sum is 17.

The square root of 167201 is about 408.9021887934. The cubic root of 167201 is about 55.0908690704.

Adding to 167201 its reverse (102761), we get a palindrome (269962).

The spelling of 167201 in words is "one hundred sixty-seven thousand, two hundred one".

Divisors: 1 61 2741 167201