133240152 has 64 divisors (see below), whose sum is σ = 364888800. Its totient is φ = 40355840.

The previous prime is 133240099. The next prime is 133240157. The reversal of 133240152 is 251042331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133240157) 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, 6202 + ... + 17462.

Almost surely, 2^133240152 is an apocalyptic number.

133240152 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 133240152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182444400).

133240152 is an abundant number, since it is smaller than the sum of its proper divisors (231648648).

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

133240152 is a wasteful number, since it uses less digits than its factorization.

133240152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11316 (or 11312 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 133240152 is about 11542.9698085025. The cubic root of 133240152 is about 510.7539176368.

Adding to 133240152 its reverse (251042331), we get a palindrome (384282483).

The spelling of 133240152 in words is "one hundred thirty-three million, two hundred forty thousand, one hundred fifty-two".