1425565 has 4 divisors (see below), whose sum is σ = 1710684. Its totient is φ = 1140448.

The previous prime is 1425547. The next prime is 1425583. The reversal of 1425565 is 5655241.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1425547) and next prime (1425583).

It can be written as a sum of positive squares in 2 ways, for example, as 1069156 + 356409 = 1034^2 + 597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425565 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 142552 + ... + 142561.

It is an arithmetic number, because the mean of its divisors is an integer number (427671).

2^1425565 is an apocalyptic number.

It is an amenable number.

1425565 is a deficient number, since it is larger than the sum of its proper divisors (285119).

1425565 is an equidigital number, since it uses as much as digits as its factorization.

1425565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285118.

The product of its digits is 6000, while the sum is 28.

The square root of 1425565 is about 1193.9702676365. The cubic root of 1425565 is about 112.5457262677.

The spelling of 1425565 in words is "one million, four hundred twenty-five thousand, five hundred sixty-five".