133311152 has 20 divisors (see below), whose sum is σ = 278159280. Its totient is φ = 61528128.

The previous prime is 133311121. The next prime is 133311179. The reversal of 133311152 is 251113331.

133311152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320252 + ... + 320667.

It is an arithmetic number, because the mean of its divisors is an integer number (13907964).

Almost surely, 2^133311152 is an apocalyptic number.

It is an amenable number.

133311152 is an abundant number, since it is smaller than the sum of its proper divisors (144848128).

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

133311152 is a wasteful number, since it uses less digits than its factorization.

133311152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640940 (or 640934 counting only the distinct ones).

The product of its digits is 270, while the sum is 20.

The square root of 133311152 is about 11546.0448639350. The cubic root of 133311152 is about 510.8446237497.

Adding to 133311152 its reverse (251113331), we get a palindrome (384424483).

The spelling of 133311152 in words is "one hundred thirty-three million, three hundred eleven thousand, one hundred fifty-two".