1423319 has 2 divisors, whose sum is σ = 1423320. Its totient is φ = 1423318.

The previous prime is 1423307. The next prime is 1423321. The reversal of 1423319 is 9133241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423319 is a prime.

It is a super-2 number, since 2×1423319² = 4051673951522, which contains 22 as substring.

Together with 1423321, it forms a pair of twin primes.

It is a Chen prime.

It is equal to p₁₀₈₇₁₆ and since 1423319 and 108716 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 1423294 and 1423303.

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 good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711659 + 711660.

It is an arithmetic number, because the mean of its divisors is an integer number (711660).

2^1423319 is an apocalyptic number.

1423319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423319 is an equidigital number, since it uses as much as digits as its factorization.

1423319 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 648, while the sum is 23.

The square root of 1423319 is about 1193.0293374431. The cubic root of 1423319 is about 112.4865893479.

The spelling of 1423319 in words is "one million, four hundred twenty-three thousand, three hundred nineteen".