133752735 has 16 divisors (see below), whose sum is σ = 237782880. Its totient is φ = 71334720.

The previous prime is 133752721. The next prime is 133752737. The reversal of 133752735 is 537257331.

133752735 is a `hidden beast` number, since 13 + 375 + 273 + 5 = 666.

It is not a de Polignac number, because 133752735 - 2²⁵ = 100198303 is a prime.

It is a zygodrome in base 2.

It is a self number, because there is not a number n which added to its sum of digits gives 133752735.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133752737) 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, 495246 + ... + 495515.

It is an arithmetic number, because the mean of its divisors is an integer number (14861430).

Almost surely, 2^133752735 is an apocalyptic number.

133752735 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

133752735 is a deficient number, since it is larger than the sum of its proper divisors (104030145).

133752735 is an equidigital number, since it uses as much as digits as its factorization.

133752735 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990775 (or 990769 counting only the distinct ones).

The product of its digits is 66150, while the sum is 36.

The square root of 133752735 is about 11565.1517499772. The cubic root of 133752735 is about 511.4080466965.

It can be divided in two parts, 13375 and 2735, that added together give a triangular number (16110 = T₁₇₉).

The spelling of 133752735 in words is "one hundred thirty-three million, seven hundred fifty-two thousand, seven hundred thirty-five".