133118860 has 48 divisors (see below), whose sum is σ = 322043904. Its totient is φ = 45275328.

The previous prime is 133118849. The next prime is 133118879. The reversal of 133118860 is 68811331.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14037 + ... + 21523.

It is an arithmetic number, because the mean of its divisors is an integer number (6709248).

Almost surely, 2^133118860 is an apocalyptic number.

133118860 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 133118860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161021952).

133118860 is an abundant number, since it is smaller than the sum of its proper divisors (188925044).

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

133118860 is a wasteful number, since it uses less digits than its factorization.

133118860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630 (or 7628 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 133118860 is about 11537.7146783928. The cubic root of 133118860 is about 510.5988863616.

The spelling of 133118860 in words is "one hundred thirty-three million, one hundred eighteen thousand, eight hundred sixty".