1122531 has 4 divisors (see below), whose sum is σ = 1496712. Its totient is φ = 748352.

The previous prime is 1122529. The next prime is 1122533. The reversal of 1122531 is 1352211.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1122529) and next prime (1122533).

It is a cyclic number.

It is not a de Polignac number, because 1122531 - 2¹ = 1122529 is a prime.

It is a super-2 number, since 2×1122531² = 2520151691922, which contains 22 as substring.

It is an Ulam number.

It is a D-number.

It is a self number, because there is not a number n which added to its sum of digits gives 1122531.

It is not an unprimeable number, because it can be changed into a prime (1122533) 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, 187086 + ... + 187091.

It is an arithmetic number, because the mean of its divisors is an integer number (374178).

2^1122531 is an apocalyptic number.

1122531 is a deficient number, since it is larger than the sum of its proper divisors (374181).

1122531 is an equidigital number, since it uses as much as digits as its factorization.

1122531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374180.

The product of its digits is 60, while the sum is 15.

The square root of 1122531 is about 1059.4956347244. The cubic root of 1122531 is about 103.9280505805.

Adding to 1122531 its reverse (1352211), we get a palindrome (2474742).

It can be divided in two parts, 1122 and 531, that added together give a triangular number (1653 = T₅₇).

The spelling of 1122531 in words is "one million, one hundred twenty-two thousand, five hundred thirty-one".