1131548 has 12 divisors (see below), whose sum is σ = 2160312. Its totient is φ = 514320.

The previous prime is 1131547. The next prime is 1131553. The reversal of 1131548 is 8451311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12815 + ... + 12902.

It is an arithmetic number, because the mean of its divisors is an integer number (180026).

2^1131548 is an apocalyptic number.

It is an amenable number.

1131548 is a deficient number, since it is larger than the sum of its proper divisors (1028764).

1131548 is a wasteful number, since it uses less digits than its factorization.

1131548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25732 (or 25730 counting only the distinct ones).

The product of its digits is 480, while the sum is 23.

The square root of 1131548 is about 1063.7424500320. The cubic root of 1131548 is about 104.2055844625.

Adding to 1131548 its reverse (8451311), we get a palindrome (9582859).

It can be divided in two parts, 113 and 1548, that added together give a palindrome (1661).

The spelling of 1131548 in words is "one million, one hundred thirty-one thousand, five hundred forty-eight".