1389401303 has 2 divisors, whose sum is σ = 1389401304. Its totient is φ = 1389401302.

The previous prime is 1389401269. The next prime is 1389401341. The reversal of 1389401303 is 3031049831.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1389401303 - 2⁸ = 1389401047 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1389401303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1389401003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 694700651 + 694700652.

It is an arithmetic number, because the mean of its divisors is an integer number (694700652).

Almost surely, 2^1389401303 is an apocalyptic number.

1389401303 is a deficient number, since it is larger than the sum of its proper divisors (1).

1389401303 is an equidigital number, since it uses as much as digits as its factorization.

1389401303 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 32.

The square root of 1389401303 is about 37274.6737477339. The cubic root of 1389401303 is about 1115.8587773557.

The spelling of 1389401303 in words is "one billion, three hundred eighty-nine million, four hundred one thousand, three hundred three".