1425089 has 8 divisors (see below), whose sum is σ = 1488360. Its totient is φ = 1362816.

The previous prime is 1425079. The next prime is 1425091. The reversal of 1425089 is 9805241.

It can be written as a sum of positive squares in 4 ways, for example, as 4225 + 1420864 = 65^2 + 1192^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1425089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1425029) 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, 4397 + ... + 4709.

It is an arithmetic number, because the mean of its divisors is an integer number (186045).

2^1425089 is an apocalyptic number.

It is an amenable number.

1425089 is a deficient number, since it is larger than the sum of its proper divisors (63271).

1425089 is a wasteful number, since it uses less digits than its factorization.

1425089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 1425089 is about 1193.7709160471. The cubic root of 1425089 is about 112.5331984327.

1425089 divided by its sum of digits (29) gives a triangular number (49141 = T₃₁₃).

The spelling of 1425089 in words is "one million, four hundred twenty-five thousand, eighty-nine".