1120531 has 4 divisors (see below), whose sum is σ = 1159200.
Its totient is φ = 1081864.
The previous prime is 1120529. The next prime is 1120541. The reversal of 1120531 is 1350211.
It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1350211 = 29 ⋅46559.
It is a cyclic number.
It is not a de Polignac number, because 1120531 - 21 = 1120529 is a prime.
It is a super-2 number, since 2×11205312 = 2511179443922, which contains 22 as substring.
It is a Duffinian number.
1120531 is a lucky number.
It is a plaindrome in base 7.
It is not an unprimeable number, because it can be changed into a prime (1120501) 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, 19291 + ... + 19348.
It is an arithmetic number, because the mean of its divisors is an integer number (289800).
21120531 is an apocalyptic number.
1120531 is a deficient number, since it is larger than the sum of its proper divisors (38669).
1120531 is an equidigital number, since it uses as much as digits as its factorization.
1120531 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 38668.
The product of its (nonzero) digits is 30, while the sum is 13.
The square root of 1120531 is about 1058.5513686166.
The cubic root of 1120531 is about 103.8662914343.
Adding to 1120531 its reverse (1350211), we get a palindrome (2470742).
It can be divided in two parts, 11205 and 31, that added together give a square (11236 = 1062).
The spelling of 1120531 in words is "one million, one hundred twenty thousand, five hundred thirty-one".