1423039 has 2 divisors, whose sum is σ = 1423040. Its totient is φ = 1423038.

The previous prime is 1423003. The next prime is 1423061. The reversal of 1423039 is 9303241.

It is an a-pointer prime, because the next prime (1423061) can be obtained adding 1423039 to its sum of digits (22).

It is a strong prime.

It is an emirp because it is prime and its reverse (9303241) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1423039 - 2¹⁷ = 1291967 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711519 + 711520.

It is an arithmetic number, because the mean of its divisors is an integer number (711520).

2^1423039 is an apocalyptic number.

1423039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423039 is an equidigital number, since it uses as much as digits as its factorization.

1423039 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 1423039 is about 1192.9119833416. The cubic root of 1423039 is about 112.4792126201.

The spelling of 1423039 in words is "one million, four hundred twenty-three thousand, thirty-nine".