1131526 has 16 divisors (see below), whose sum is σ = 1949760. Its totient is φ = 487080.

The previous prime is 1131523. The next prime is 1131547. The reversal of 1131526 is 6251311.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a plaindrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131523) 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, 936 + ... + 1771.

It is an arithmetic number, because the mean of its divisors is an integer number (121860).

2^1131526 is an apocalyptic number.

1131526 is a deficient number, since it is larger than the sum of its proper divisors (818234).

1131526 is a wasteful number, since it uses less digits than its factorization.

1131526 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2739.

The product of its digits is 180, while the sum is 19.

The square root of 1131526 is about 1063.7321091327. The cubic root of 1131526 is about 104.2049091229.

Adding to 1131526 its reverse (6251311), we get a palindrome (7382837).

The spelling of 1131526 in words is "one million, one hundred thirty-one thousand, five hundred twenty-six".