1143525 has 24 divisors (see below), whose sum is σ = 1924480. Its totient is φ = 599040.

The previous prime is 1143487. The next prime is 1143529. The reversal of 1143525 is 5253411.

It is not a de Polignac number, because 1143525 - 2⁸ = 1143269 is a prime.

It is a d-powerful number, because it can be written as 1 + 1 + 4¹⁰ + 3¹⁰ + 5 + 2¹⁵ + 5⁵ .

1143525 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5829 + ... + 6021.

2^1143525 is an apocalyptic number.

1143525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1143525 is a deficient number, since it is larger than the sum of its proper divisors (780955).

1143525 is a wasteful number, since it uses less digits than its factorization.

1143525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 285 (or 280 counting only the distinct ones).

The product of its digits is 600, while the sum is 21.

The square root of 1143525 is about 1069.3572836054. The cubic root of 1143525 is about 104.5719535279.

Adding to 1143525 its reverse (5253411), we get a palindrome (6396936).

The spelling of 1143525 in words is "one million, one hundred forty-three thousand, five hundred twenty-five".