133144152 has 32 divisors (see below), whose sum is σ = 333355200. Its totient is φ = 44315424.

The previous prime is 133144147. The next prime is 133144169. The reversal of 133144152 is 251441331.

It is a happy number.

133144152 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

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, 13983 + ... + 21489.

It is an arithmetic number, because the mean of its divisors is an integer number (10417350).

Almost surely, 2^133144152 is an apocalyptic number.

133144152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133144152 is an abundant number, since it is smaller than the sum of its proper divisors (200211048).

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

133144152 is a wasteful number, since it uses less digits than its factorization.

133144152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8255 (or 8251 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 133144152 is about 11538.8106839483. The cubic root of 133144152 is about 510.6312214974.

Adding to 133144152 its reverse (251441331), we get a palindrome (384585483).

The spelling of 133144152 in words is "one hundred thirty-three million, one hundred forty-four thousand, one hundred fifty-two".