133148224 has 56 divisors (see below), whose sum is σ = 297582336. Its totient is φ = 58560000.

The previous prime is 133148209. The next prime is 133148231. The reversal of 133148224 is 422841331.

It is a junction number, because it is equal to n+sod(n) for n = 133148192 and 133148201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18774 + ... + 24874.

Almost surely, 2^133148224 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 133148224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148791168).

133148224 is an abundant number, since it is smaller than the sum of its proper divisors (164434112).

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

133148224 is a wasteful number, since it uses less digits than its factorization.

133148224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155 (or 6145 counting only the distinct ones).

The product of its digits is 4608, while the sum is 28.

The square root of 133148224 is about 11538.9871305934. The cubic root of 133148224 is about 510.6364270562.

Adding to 133148224 its reverse (422841331), we get a palindrome (555989555).

The spelling of 133148224 in words is "one hundred thirty-three million, one hundred forty-eight thousand, two hundred twenty-four".