133537422 has 16 divisors (see below), whose sum is σ = 272114640. Its totient is φ = 43672512.

The previous prime is 133537421. The next prime is 133537427. The reversal of 133537422 is 224735331.

It is a self number, because there is not a number n which added to its sum of digits gives 133537422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133537421) 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, 209647 + ... + 210282.

It is an arithmetic number, because the mean of its divisors is an integer number (17007165).

Almost surely, 2^133537422 is an apocalyptic number.

133537422 is an abundant number, since it is smaller than the sum of its proper divisors (138577218).

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

133537422 is a wasteful number, since it uses less digits than its factorization.

133537422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419987.

The product of its digits is 15120, while the sum is 30.

The square root of 133537422 is about 11555.8393031402. The cubic root of 133537422 is about 511.1334804989.

The spelling of 133537422 in words is "one hundred thirty-three million, five hundred thirty-seven thousand, four hundred twenty-two".