133758036 has 72 divisors (see below), whose sum is σ = 351134784. Its totient is φ = 42900480.

The previous prime is 133758019. The next prime is 133758067. The reversal of 133758036 is 630857331.

133758036 is a `hidden beast` number, since 13 + 37 + 580 + 36 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 109300 + ... + 110516.

It is an arithmetic number, because the mean of its divisors is an integer number (4876872).

Almost surely, 2^133758036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133758036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (175567392).

133758036 is an abundant number, since it is smaller than the sum of its proper divisors (217376748).

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

133758036 is a wasteful number, since it uses less digits than its factorization.

133758036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341 (or 1336 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 133758036 is about 11565.3809275787. The cubic root of 133758036 is about 511.4148027908.

The spelling of 133758036 in words is "one hundred thirty-three million, seven hundred fifty-eight thousand, thirty-six".