1112551 has 4 divisors (see below), whose sum is σ = 1213704. Its totient is φ = 1011400.

The previous prime is 1112549. The next prime is 1112561. The reversal of 1112551 is 1552111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1552111 = 11 ⋅141101.

It is a cyclic number.

It is not a de Polignac number, because 1112551 - 2¹ = 1112549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1112561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50560 + ... + 50581.

It is an arithmetic number, because the mean of its divisors is an integer number (303426).

2^1112551 is an apocalyptic number.

1112551 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1112551 is a deficient number, since it is larger than the sum of its proper divisors (101153).

1112551 is a wasteful number, since it uses less digits than its factorization.

1112551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101152.

The product of its digits is 50, while the sum is 16.

The square root of 1112551 is about 1054.7753315280. The cubic root of 1112551 is about 103.6191382481.

Adding to 1112551 its reverse (1552111), we get a palindrome (2664662).

It can be divided in two parts, 111 and 2551, that added together give a palindrome (2662).

The spelling of 1112551 in words is "one million, one hundred twelve thousand, five hundred fifty-one".