1425775 has 24 divisors (see below), whose sum is σ = 1968624. Its totient is φ = 1017600.

The previous prime is 1425769. The next prime is 1425791. The reversal of 1425775 is 5775241.

It is not a de Polignac number, because 1425775 - 2¹³ = 1417583 is a prime.

It is a Duffinian number.

1425775 is a lucky number.

It is a nialpdrome in base 5.

It is a zygodrome in base 5.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13272 + ... + 13378.

It is an arithmetic number, because the mean of its divisors is an integer number (82026).

2^1425775 is an apocalyptic number.

1425775 is a deficient number, since it is larger than the sum of its proper divisors (542849).

1425775 is a wasteful number, since it uses less digits than its factorization.

1425775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171 (or 166 counting only the distinct ones).

The product of its digits is 9800, while the sum is 31.

The square root of 1425775 is about 1194.0582062864. The cubic root of 1425775 is about 112.5512523672.

The spelling of 1425775 in words is "one million, four hundred twenty-five thousand, seven hundred seventy-five".