139201 has 2 divisors, whose sum is σ = 139202. Its totient is φ = 139200.

The previous prime is 139199. The next prime is 139241. The reversal of 139201 is 102931.

139201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 104976 + 34225 = 324^2 + 185^2 .

It is an emirp because it is prime and its reverse (102931) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 139201 - 2¹ = 139199 is a prime.

Together with 139199, it forms a pair of twin primes.

It is equal to p₁₂₉₄₀ and since 139201 and 12940 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (139241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69600 + 69601.

It is an arithmetic number, because the mean of its divisors is an integer number (69601).

2¹³⁹²⁰¹ is an apocalyptic number.

It is an amenable number.

139201 is a deficient number, since it is larger than the sum of its proper divisors (1).

139201 is an equidigital number, since it uses as much as digits as its factorization.

139201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 139201 is about 373.0965022618. The cubic root of 139201 is about 51.8259714825.

The spelling of 139201 in words is "one hundred thirty-nine thousand, two hundred one".