133120422 has 80 divisors (see below), whose sum is σ = 319585200. Its totient is φ = 41290560.

The previous prime is 133120409. The next prime is 133120423. The reversal of 133120422 is 224021331.

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 = 133120395 and 133120404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133120423) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 187404 + ... + 188112.

It is an arithmetic number, because the mean of its divisors is an integer number (3994815).

Almost surely, 2^133120422 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133120422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159792600).

133120422 is an abundant number, since it is smaller than the sum of its proper divisors (186464778).

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

133120422 is a wasteful number, since it uses less digits than its factorization.

133120422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803 (or 794 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 133120422 is about 11537.7823692424. The cubic root of 133120422 is about 510.6008834549.

Adding to 133120422 its reverse (224021331), we get a palindrome (357141753).

Subtracting 133120422 from its reverse (224021331), we obtain a palindrome (90900909).

The spelling of 133120422 in words is "one hundred thirty-three million, one hundred twenty thousand, four hundred twenty-two".