1124521 has 4 divisors (see below), whose sum is σ = 1136212. Its totient is φ = 1112832.

The previous prime is 1124509. The next prime is 1124531. The reversal of 1124521 is 1254211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1254211 = 7 ⋅179173.

It can be written as a sum of positive squares in 2 ways, for example, as 837225 + 287296 = 915^2 + 536^2 .

It is a cyclic number.

It is not a de Polignac number, because 1124521 - 2¹³ = 1116329 is a prime.

It is a Duffinian number.

1124521 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1124495 and 1124504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1124531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5700 + ... + 5893.

It is an arithmetic number, because the mean of its divisors is an integer number (284053).

2^1124521 is an apocalyptic number.

It is an amenable number.

1124521 is a deficient number, since it is larger than the sum of its proper divisors (11691).

1124521 is an equidigital number, since it uses as much as digits as its factorization.

1124521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11690.

The product of its digits is 80, while the sum is 16.

The square root of 1124521 is about 1060.4343449738. The cubic root of 1124521 is about 103.9894281660.

Adding to 1124521 its reverse (1254211), we get a palindrome (2378732).

The spelling of 1124521 in words is "one million, one hundred twenty-four thousand, five hundred twenty-one".