1339903 has 2 divisors, whose sum is σ = 1339904. Its totient is φ = 1339902.

The previous prime is 1339901. The next prime is 1339907. The reversal of 1339903 is 3099331.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (3099331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1339903 - 2¹ = 1339901 is a prime.

Together with 1339901, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1339901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 669951 + 669952.

It is an arithmetic number, because the mean of its divisors is an integer number (669952).

2^1339903 is an apocalyptic number.

1339903 is a deficient number, since it is larger than the sum of its proper divisors (1).

1339903 is an equidigital number, since it uses as much as digits as its factorization.

1339903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187, while the sum is 28.

The square root of 1339903 is about 1157.5417919021. The cubic root of 1339903 is about 110.2447168829.

The spelling of 1339903 in words is "one million, three hundred thirty-nine thousand, nine hundred three".