133656852 has 48 divisors (see below), whose sum is σ = 359597952. Its totient is φ = 37847040.

The previous prime is 133656851. The next prime is 133656871. The reversal of 133656852 is 258656331.

It is a self number, because there is not a number n which added to its sum of digits gives 133656852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133656851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2452 + ... + 16532.

It is an arithmetic number, because the mean of its divisors is an integer number (7491624).

Almost surely, 2^133656852 is an apocalyptic number.

133656852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133656852, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179798976).

133656852 is an abundant number, since it is smaller than the sum of its proper divisors (225941100).

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

133656852 is a wasteful number, since it uses less digits than its factorization.

133656852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14208 (or 14206 counting only the distinct ones).

The product of its digits is 129600, while the sum is 39.

The square root of 133656852 is about 11561.0056655985. The cubic root of 133656852 is about 511.2858135332.

The spelling of 133656852 in words is "one hundred thirty-three million, six hundred fifty-six thousand, eight hundred fifty-two".