1405319 has 2 divisors, whose sum is σ = 1405320. Its totient is φ = 1405318.

The previous prime is 1405309. The next prime is 1405333. The reversal of 1405319 is 9135041.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1405319 is a prime.

It is a super-2 number, since 2×1405319² = 3949842983522, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1405294 and 1405303.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1405309) 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, 702659 + 702660.

It is an arithmetic number, because the mean of its divisors is an integer number (702660).

2^1405319 is an apocalyptic number.

1405319 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405319 is an equidigital number, since it uses as much as digits as its factorization.

1405319 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 540, while the sum is 23.

The square root of 1405319 is about 1185.4615135043. The cubic root of 1405319 is about 112.0103891298.

The spelling of 1405319 in words is "one million, four hundred five thousand, three hundred nineteen".