1122516 has 18 divisors (see below), whose sum is σ = 2837562. Its totient is φ = 374160.

The previous prime is 1122491. The next prime is 1122529. The reversal of 1122516 is 6152211.

It can be written as a sum of positive squares in only one way, i.e., 646416 + 476100 = 804^2 + 690^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a d-powerful number, because it can be written as 1 + 1 + 2¹⁶ + 2²⁰ + 5⁴ + 1 + 6⁵ .

It is a congruent number.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 15555 + ... + 15626.

2^1122516 is an apocalyptic number.

It is an amenable number.

1122516 is an abundant number, since it is smaller than the sum of its proper divisors (1715046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1122516 is a wasteful number, since it uses less digits than its factorization.

1122516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31191 (or 31186 counting only the distinct ones).

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

The square root of 1122516 is about 1059.4885558608. The cubic root of 1122516 is about 103.9275876600.

Adding to 1122516 its reverse (6152211), we get a palindrome (7274727).

It can be divided in two parts, 112 and 2516, that added together give a triangular number (2628 = T₇₂).

The spelling of 1122516 in words is "one million, one hundred twenty-two thousand, five hundred sixteen".