133240422 has 16 divisors (see below), whose sum is σ = 304549632. Its totient is φ = 38068680.

The previous prime is 133240411. The next prime is 133240427. The reversal of 133240422 is 224042331.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133240427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1586154 + ... + 1586237.

It is an arithmetic number, because the mean of its divisors is an integer number (19034352).

Almost surely, 2^133240422 is an apocalyptic number.

133240422 is an abundant number, since it is smaller than the sum of its proper divisors (171309210).

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

133240422 is a wasteful number, since it uses less digits than its factorization.

133240422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3172403.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 133240422 is about 11542.9815039270. The cubic root of 133240422 is about 510.7542626366.

Adding to 133240422 its reverse (224042331), we get a palindrome (357282753).

The spelling of 133240422 in words is "one hundred thirty-three million, two hundred forty thousand, four hundred twenty-two".