1339901 has 2 divisors, whose sum is σ = 1339902. Its totient is φ = 1339900.

The previous prime is 1339873. The next prime is 1339903. The reversal of 1339901 is 1099331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1276900 + 63001 = 1130^2 + 251^2 .

It is a cyclic number.

It is not a de Polignac number, because 1339901 - 2¹⁰ = 1338877 is a prime.

Together with 1339903, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1339903) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669950 + 669951.

It is an arithmetic number, because the mean of its divisors is an integer number (669951).

2^1339901 is an apocalyptic number.

It is an amenable number.

1339901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1339901 is an equidigital number, since it uses as much as digits as its factorization.

1339901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1339901 is about 1157.5409280021. The cubic root of 1339901 is about 110.2446620308.

The spelling of 1339901 in words is "one million, three hundred thirty-nine thousand, nine hundred one".