133541299782 has 96 divisors (see below), whose sum is σ = 330231807360. Its totient is φ = 40108763520.

The previous prime is 133541299763. The next prime is 133541299813. The reversal of 133541299782 is 287992145331.

133541299782 is a `hidden beast` number, since 1 + 3 + 3 + 541 + 2 + 9 + 97 + 8 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 493569 + ... + 714627.

It is an arithmetic number, because the mean of its divisors is an integer number (3439914660).

Almost surely, 2^133541299782 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133541299782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (165115903680).

133541299782 is an abundant number, since it is smaller than the sum of its proper divisors (196690507578).

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

133541299782 is a wasteful number, since it uses less digits than its factorization.

133541299782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221200 (or 221188 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The spelling of 133541299782 in words is "one hundred thirty-three billion, five hundred forty-one million, two hundred ninety-nine thousand, seven hundred eighty-two".