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139301 is a prime number

139301 has 2 divisors, whose sum is σ = 139302. Its totient is φ = 139300.

The previous prime is 139297. The next prime is 139303. The reversal of 139301 is 103931.

It can be divided in two parts, 13930 and 1, that added together give a palindrome (13931).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136900 + 2401 = 370^2 + 49^2 .

It is a cyclic number.

It is not a de Polignac number, because 139301 - 22 = 139297 is a prime.

Together with 139303, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 139301.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (139303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 69650 + 69651.

It is an arithmetic number, because the mean of its divisors is an integer number (69651).

2139301 is an apocalyptic number.

139301 is the 200-th centered heptagonal number.

It is an amenable number.

139301 is a deficient number, since it is larger than the sum of its proper divisors (1).

139301 is an equidigital number, since it uses as much as digits as its factorization.

139301 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81, while the sum is 17.

The square root of 139301 is about 373.2304917876. The cubic root of 139301 is about 51.8383788565.

The spelling of 139301 in words is "one hundred thirty-nine thousand, three hundred one".