1145425 has 6 divisors (see below), whose sum is σ = 1420358. Its totient is φ = 916320.

The previous prime is 1145411. The next prime is 1145429. The reversal of 1145425 is 5245411.

It can be written as a sum of positive squares in 3 ways, for example, as 239121 + 906304 = 489^2 + 952^2 .

It is not a de Polignac number, because 1145425 - 2⁵ = 1145393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1145396 and 1145405.

It is not an unprimeable number, because it can be changed into a prime (1145429) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22884 + ... + 22933.

2^1145425 is an apocalyptic number.

It is an amenable number.

1145425 is a deficient number, since it is larger than the sum of its proper divisors (274933).

1145425 is an equidigital number, since it uses as much as digits as its factorization.

1145425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45827 (or 45822 counting only the distinct ones).

The product of its digits is 800, while the sum is 22.

The square root of 1145425 is about 1070.2452989852. The cubic root of 1145425 is about 104.6298379269.

The spelling of 1145425 in words is "one million, one hundred forty-five thousand, four hundred twenty-five".