1120521 has 16 divisors (see below), whose sum is σ = 1603584. Its totient is φ = 693504.

The previous prime is 1120519. The next prime is 1120529. The reversal of 1120521 is 1250211.

It is not a de Polignac number, because 1120521 - 2¹ = 1120519 is a prime.

It is a super-2 number, since 2×1120521² = 2511134622882, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1120497 and 1120506.

It is not an unprimeable number, because it can be changed into a prime (1120529) 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 15 ways as a sum of consecutive naturals, for example, 6391 + ... + 6563.

It is an arithmetic number, because the mean of its divisors is an integer number (100224).

2^1120521 is an apocalyptic number.

It is an amenable number.

1120521 is a deficient number, since it is larger than the sum of its proper divisors (483063).

1120521 is a wasteful number, since it uses less digits than its factorization.

1120521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320.

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1120521 is about 1058.5466451697. The cubic root of 1120521 is about 103.8659824540.

Adding to 1120521 its reverse (1250211), we get a palindrome (2370732).

The spelling of 1120521 in words is "one million, one hundred twenty thousand, five hundred twenty-one".