1405513 has 2 divisors, whose sum is σ = 1405514. Its totient is φ = 1405512.

The previous prime is 1405511. The next prime is 1405529. The reversal of 1405513 is 3155041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1375929 + 29584 = 1173^2 + 172^2 .

It is an emirp because it is prime and its reverse (3155041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1405513 - 2¹ = 1405511 is a prime.

Together with 1405511, it forms a pair of twin primes.

1405513 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1405511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 702756 + 702757.

It is an arithmetic number, because the mean of its divisors is an integer number (702757).

2^1405513 is an apocalyptic number.

It is an amenable number.

1405513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1405513 is an equidigital number, since it uses as much as digits as its factorization.

1405513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 1405513 is about 1185.5433353530. The cubic root of 1405513 is about 112.0155431235.

The spelling of 1405513 in words is "one million, four hundred five thousand, five hundred thirteen".