1405529 has 2 divisors, whose sum is σ = 1405530. Its totient is φ = 1405528.

The previous prime is 1405513. The next prime is 1405531. The reversal of 1405529 is 9255041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1261129 + 144400 = 1123^2 + 380^2 .

It is an emirp because it is prime and its reverse (9255041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405529 - 2⁴ = 1405513 is a prime.

Together with 1405531, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1405498 and 1405507.

It is not a weakly prime, because it can be changed into another prime (1401529) 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, 702764 + 702765.

It is an arithmetic number, because the mean of its divisors is an integer number (702765).

2^1405529 is an apocalyptic number.

It is an amenable number.

1405529 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405529 is an equidigital number, since it uses as much as digits as its factorization.

1405529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 1405529 is about 1185.5500832947. The cubic root of 1405529 is about 112.0159681739.

The spelling of 1405529 in words is "one million, four hundred five thousand, five hundred twenty-nine".