1121526 has 80 divisors (see below), whose sum is σ = 3066624. Its totient is φ = 299376.

The previous prime is 1121509. The next prime is 1121539. The reversal of 1121526 is 6251211.

1121526 = T₂₈ + T₂₉ + ... + T₁₈₈.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1121499 and 1121508.

It is a congruent number.

It is an unprimeable number.

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 39 ways as a sum of consecutive naturals, for example, 26061 + ... + 26103.

2^1121526 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121526, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1533312).

1121526 is an abundant number, since it is smaller than the sum of its proper divisors (1945098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1121526 is a wasteful number, since it uses less digits than its factorization.

1121526 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87 (or 78 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 1121526 is about 1059.0212462458. The cubic root of 1121526 is about 103.8970257871.

Adding to 1121526 its reverse (6251211), we get a palindrome (7372737).

The spelling of 1121526 in words is "one million, one hundred twenty-one thousand, five hundred twenty-six".