133111422 has 48 divisors (see below), whose sum is σ = 297704160. Its totient is φ = 42952896.

The previous prime is 133111417. The next prime is 133111423. The reversal of 133111422 is 224111331.

133111422 is a `hidden beast` number, since 133 + 111 + 422 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 133111395 and 133111404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133111423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 178783 + ... + 179525.

It is an arithmetic number, because the mean of its divisors is an integer number (6202170).

Almost surely, 2^133111422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133111422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148852080).

133111422 is an abundant number, since it is smaller than the sum of its proper divisors (164592738).

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

133111422 is a wasteful number, since it uses less digits than its factorization.

133111422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057 (or 1054 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 133111422 is about 11537.3923396927. The cubic root of 133111422 is about 510.5893763010.

Adding to 133111422 its reverse (224111331), we get a palindrome (357222753).

Subtracting 133111422 from its reverse (224111331), we obtain a palindrome (90999909).

The spelling of 133111422 in words is "one hundred thirty-three million, one hundred eleven thousand, four hundred twenty-two".