1126521 has 16 divisors (see below), whose sum is σ = 1821120. Its totient is φ = 682560.

The previous prime is 1126519. The next prime is 1126523. The reversal of 1126521 is 1256211.

1126521 is a `hidden beast` number, since 1 + 12 + 652 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1126519) and next prime (1126523).

It is not a de Polignac number, because 1126521 - 2¹ = 1126519 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1126494 and 1126503.

It is not an unprimeable number, because it can be changed into a prime (1126523) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1600 + ... + 2193.

It is an arithmetic number, because the mean of its divisors is an integer number (113820).

2^1126521 is an apocalyptic number.

1126521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1126521 is a deficient number, since it is larger than the sum of its proper divisors (694599).

1126521 is a wasteful number, since it uses less digits than its factorization.

1126521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3813 (or 3807 counting only the distinct ones).

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

The square root of 1126521 is about 1061.3769358715. The cubic root of 1126521 is about 104.0510412673.

The spelling of 1126521 in words is "one million, one hundred twenty-six thousand, five hundred twenty-one".