1121290176 has 56 divisors (see below), whose sum is σ = 2981756800. Its totient is φ = 371872512.

The previous prime is 1121290171. The next prime is 1121290193. The reversal of 1121290176 is 6710921211.

It is a super-2 number, since 2×1121290176² = 2514583317588221952, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121290171) 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 7 ways as a sum of consecutive naturals, for example, 23535 + ... + 52881.

Almost surely, 2^1121290176 is an apocalyptic number.

1121290176 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1121290176, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1490878400).

1121290176 is an abundant number, since it is smaller than the sum of its proper divisors (1860466624).

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

1121290176 is a wasteful number, since it uses less digits than its factorization.

1121290176 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29561 (or 29551 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 30.

The square root of 1121290176 is about 33485.6712042629. The cubic root of 1121290176 is about 1038.8974311165.

The spelling of 1121290176 in words is "one billion, one hundred twenty-one million, two hundred ninety thousand, one hundred seventy-six".