133345524 has 48 divisors (see below), whose sum is σ = 336147840. Its totient is φ = 40897920.

The previous prime is 133345519. The next prime is 133345543. The reversal of 133345524 is 425543331.

It is a junction number, because it is equal to n+sod(n) for n = 133345491 and 133345500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54814 + ... + 57194.

It is an arithmetic number, because the mean of its divisors is an integer number (7003080).

Almost surely, 2^133345524 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133345524, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168073920).

133345524 is an abundant number, since it is smaller than the sum of its proper divisors (202802316).

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

133345524 is a wasteful number, since it uses less digits than its factorization.

133345524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2760 (or 2758 counting only the distinct ones).

The product of its digits is 21600, while the sum is 30.

The square root of 133345524 is about 11547.5332430784. The cubic root of 133345524 is about 510.8885241593. Note that the first 3 decimals are identical.

Adding to 133345524 its reverse (425543331), we get a palindrome (558888855).

The spelling of 133345524 in words is "one hundred thirty-three million, three hundred forty-five thousand, five hundred twenty-four".