1172945168 has 40 divisors (see below), whose sum is σ = 2375556288. Its totient is φ = 559988352.

The previous prime is 1172945131. The next prime is 1172945201. The reversal of 1172945168 is 8615492711.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234146 + ... + 239102.

Almost surely, 2^1172945168 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 1172945168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1187778144).

1172945168 is an abundant number, since it is smaller than the sum of its proper divisors (1202611120).

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

1172945168 is a wasteful number, since it uses less digits than its factorization.

1172945168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5631 (or 5625 counting only the distinct ones).

The product of its digits is 120960, while the sum is 44.

The square root of 1172945168 is about 34248.2870812542. The cubic root of 1172945168 is about 1054.6116636375.

The spelling of 1172945168 in words is "one billion, one hundred seventy-two million, nine hundred forty-five thousand, one hundred sixty-eight".