1405305425 has 12 divisors (see below), whose sum is σ = 1845083916. Its totient is φ = 1058112000.

The previous prime is 1405305413. The next prime is 1405305439. The reversal of 1405305425 is 5245035041.

It can be written as a sum of positive squares in 6 ways, for example, as 24960016 + 1380345409 = 4996^2 + 37153^2 .

It is not a de Polignac number, because 1405305425 - 2²² = 1401111121 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1652876 + ... + 1653725.

It is an arithmetic number, because the mean of its divisors is an integer number (153756993).

Almost surely, 2^1405305425 is an apocalyptic number.

It is an amenable number.

1405305425 is a deficient number, since it is larger than the sum of its proper divisors (439778491).

1405305425 is a wasteful number, since it uses less digits than its factorization.

1405305425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3306628 (or 3306623 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 29.

The square root of 1405305425 is about 37487.4035510597. The cubic root of 1405305425 is about 1120.1002846533.

The spelling of 1405305425 in words is "one billion, four hundred five million, three hundred five thousand, four hundred twenty-five".