133281370152 has 96 divisors (see below), whose sum is σ = 413440996800. Its totient is φ = 37996998912.

The previous prime is 133281370091. The next prime is 133281370199. The reversal of 133281370152 is 251073182331.

It is a happy number.

133281370152 is a `hidden beast` number, since 1 + 3 + 3 + 281 + 370 + 1 + 5 + 2 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59002 + ... + 519657.

It is an arithmetic number, because the mean of its divisors is an integer number (4306677050).

Almost surely, 2^133281370152 is an apocalyptic number.

133281370152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133281370152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206720498400).

133281370152 is an abundant number, since it is smaller than the sum of its proper divisors (280159626648).

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

133281370152 is a wasteful number, since it uses less digits than its factorization.

133281370152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579135 (or 579128 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 133281370152 in words is "one hundred thirty-three billion, two hundred eighty-one million, three hundred seventy thousand, one hundred fifty-two".