133388652 has 24 divisors (see below), whose sum is σ = 312984000. Its totient is φ = 44213776.

The previous prime is 133388617. The next prime is 133388653. The reversal of 133388652 is 256883331.

It is a self number, because there is not a number n which added to its sum of digits gives 133388652.

It is not an unprimeable number, because it can be changed into a prime (133388653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28902 + ... + 33197.

It is an arithmetic number, because the mean of its divisors is an integer number (13041000).

Almost surely, 2^133388652 is an apocalyptic number.

133388652 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

133388652 is an abundant number, since it is smaller than the sum of its proper divisors (179595348).

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

133388652 is a wasteful number, since it uses less digits than its factorization.

133388652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62285 (or 62283 counting only the distinct ones).

The product of its digits is 103680, while the sum is 39.

The square root of 133388652 is about 11549.4005039223. The cubic root of 133388652 is about 510.9435971871.

The spelling of 133388652 in words is "one hundred thirty-three million, three hundred eighty-eight thousand, six hundred fifty-two".