1131045168 has 160 divisors (see below), whose sum is σ = 3368927232. Its totient is φ = 323769600.

The previous prime is 1131045131. The next prime is 1131045187. The reversal of 1131045168 is 8615401311.

It is a super-2 number, since 2×1131045168² = 2558526344112296448, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 703021 + ... + 704627.

Almost surely, 2^1131045168 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131045168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1684463616).

1131045168 is an abundant number, since it is smaller than the sum of its proper divisors (2237882064).

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

1131045168 is a wasteful number, since it uses less digits than its factorization.

1131045168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1703 (or 1697 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 30.

The square root of 1131045168 is about 33631.0149713029. The cubic root of 1131045168 is about 1041.9014671241.

Adding to 1131045168 its reverse (8615401311), we get a palindrome (9746446479).

The spelling of 1131045168 in words is "one billion, one hundred thirty-one million, forty-five thousand, one hundred sixty-eight".