1131025 has 24 divisors (see below), whose sum is σ = 1678464. Its totient is φ = 739200.

The previous prime is 1131023. The next prime is 1131047. The reversal of 1131025 is 5201311.

It is not a de Polignac number, because 1131025 - 2¹ = 1131023 is a prime.

It is a Duffinian number.

1131025 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1130996 and 1131014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131023) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3885 + ... + 4165.

It is an arithmetic number, because the mean of its divisors is an integer number (69936).

2^1131025 is an apocalyptic number.

It is an amenable number.

1131025 is a deficient number, since it is larger than the sum of its proper divisors (547439).

1131025 is a wasteful number, since it uses less digits than its factorization.

1131025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321 (or 316 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 1131025 is about 1063.4965914379. The cubic root of 1131025 is about 104.1895274270.

Adding to 1131025 its reverse (5201311), we get a palindrome (6332336).

The spelling of 1131025 in words is "one million, one hundred thirty-one thousand, twenty-five".