1179157120 has 128 divisors (see below), whose sum is σ = 2898970560. Its totient is φ = 458489856.

The previous prime is 1179157117. The next prime is 1179157121. The reversal of 1179157120 is 217519711.

It is a tau number, because it is divible by the number of its divisors (128).

It is not an unprimeable number, because it can be changed into a prime (1179157121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4588032 + ... + 4588288.

Almost surely, 2^1179157120 is an apocalyptic number.

1179157120 is a gapful number since it is divisible by the number (10) 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 1179157120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1449485280).

1179157120 is an abundant number, since it is smaller than the sum of its proper divisors (1719813440).

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

1179157120 is a wasteful number, since it uses less digits than its factorization.

1179157120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 450 (or 438 counting only the distinct ones).

The product of its (nonzero) digits is 4410, while the sum is 34.

The square root of 1179157120 is about 34338.8572902477. The cubic root of 1179157120 is about 1056.4701380739.

The spelling of 1179157120 in words is "one billion, one hundred seventy-nine million, one hundred fifty-seven thousand, one hundred twenty".