1345423 has 2 divisors, whose sum is σ = 1345424. Its totient is φ = 1345422.

The previous prime is 1345361. The next prime is 1345441. The reversal of 1345423 is 3245431.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1345423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1345394 and 1345403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1345453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 672711 + 672712.

It is an arithmetic number, because the mean of its divisors is an integer number (672712).

2^1345423 is an apocalyptic number.

1345423 is a deficient number, since it is larger than the sum of its proper divisors (1).

1345423 is an equidigital number, since it uses as much as digits as its factorization.

1345423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1440, while the sum is 22.

The square root of 1345423 is about 1159.9237043875. The cubic root of 1345423 is about 110.3959012253.

The spelling of 1345423 in words is "one million, three hundred forty-five thousand, four hundred twenty-three".