8159201 has 4 divisors (see below), whose sum is σ = 8639172. Its totient is φ = 7679232.

The previous prime is 8159197. The next prime is 8159209. The reversal of 8159201 is 1029518.

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 7480225 + 678976 = 2735^2 + 824^2 .

It is a cyclic number.

It is not a de Polignac number, because 8159201 - 2² = 8159197 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8159209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 239960 + ... + 239993.

It is an arithmetic number, because the mean of its divisors is an integer number (2159793).

Almost surely, 2^8159201 is an apocalyptic number.

It is an amenable number.

8159201 is a deficient number, since it is larger than the sum of its proper divisors (479971).

8159201 is a wasteful number, since it uses less digits than its factorization.

8159201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479970.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 8159201 is about 2856.4315150201. The cubic root of 8159201 is about 201.3179706882.

The spelling of 8159201 in words is "eight million, one hundred fifty-nine thousand, two hundred one".