133640152 has 32 divisors (see below), whose sum is σ = 258278400. Its totient is φ = 64779264.

The previous prime is 133640141. The next prime is 133640159. The reversal of 133640152 is 251046331.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133640159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103849 + ... + 105127.

It is an arithmetic number, because the mean of its divisors is an integer number (8071200).

Almost surely, 2^133640152 is an apocalyptic number.

It is an amenable number.

133640152 is a deficient number, since it is larger than the sum of its proper divisors (124638248).

133640152 is a wasteful number, since it uses less digits than its factorization.

133640152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1675 (or 1671 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

The square root of 133640152 is about 11560.2833875299. The cubic root of 133640152 is about 511.2645181324.

Adding to 133640152 its reverse (251046331), we get a palindrome (384686483).

The spelling of 133640152 in words is "one hundred thirty-three million, six hundred forty thousand, one hundred fifty-two".