1121044158 has 64 divisors (see below), whose sum is σ = 2840685120. Its totient is φ = 324642816.

The previous prime is 1121044157. The next prime is 1121044187. The reversal of 1121044158 is 8514401211.

It is a happy number.

1121044158 is a `hidden beast` number, since 1 + 1 + 210 + 441 + 5 + 8 = 666.

1121044158 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121044151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35035 + ... + 58902.

It is an arithmetic number, because the mean of its divisors is an integer number (44385705).

Almost surely, 2^1121044158 is an apocalyptic number.

1121044158 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1121044158 is an abundant number, since it is smaller than the sum of its proper divisors (1719640962).

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

1121044158 is a wasteful number, since it uses less digits than its factorization.

1121044158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93978 (or 93972 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 1121044158 is about 33481.9975210560. The cubic root of 1121044158 is about 1038.8214453850.

Adding to 1121044158 its reverse (8514401211), we get a palindrome (9635445369).

The spelling of 1121044158 in words is "one billion, one hundred twenty-one million, forty-four thousand, one hundred fifty-eight".