1425865 has 8 divisors (see below), whose sum is σ = 1955520. Its totient is φ = 977712.

The previous prime is 1425863. The next prime is 1425877. The reversal of 1425865 is 5685241.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1425865 - 2¹ = 1425863 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1425863) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20335 + ... + 20404.

It is an arithmetic number, because the mean of its divisors is an integer number (244440).

2^1425865 is an apocalyptic number.

It is an amenable number.

1425865 is a deficient number, since it is larger than the sum of its proper divisors (529655).

1425865 is an equidigital number, since it uses as much as digits as its factorization.

1425865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40751.

The product of its digits is 9600, while the sum is 31.

The square root of 1425865 is about 1194.0958922968. The cubic root of 1425865 is about 112.5536205295.

The spelling of 1425865 in words is "one million, four hundred twenty-five thousand, eight hundred sixty-five".