133143142500 has 150 divisors (see below), whose sum is σ = 434939529486. Its totient is φ = 35504784000.

The previous prime is 133143142477. The next prime is 133143142543. The reversal of 133143142500 is 5241341331.

It is a happy number.

133143142500 is a `hidden beast` number, since 1 + 3 + 3 + 14 + 3 + 142 + 500 = 666.

It can be written as a sum of positive squares in 5 ways, for example, as 95985953856 + 37157188644 = 309816^2 + 192762^2 .

It is a tau number, because it is divible by the number of its divisors (150).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 49 ways as a sum of consecutive naturals, for example, 126249 + ... + 531248.

Almost surely, 2^133143142500 is an apocalyptic number.

133143142500 is a gapful number since it is divisible by the number (10) 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 133143142500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217469764743).

133143142500 is an abundant number, since it is smaller than the sum of its proper divisors (301796386986).

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

133143142500 is an equidigital number, since it uses as much as digits as its factorization.

133143142500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657533 (or 657507 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 133143142500 its reverse (5241341331), we get a palindrome (138384483831).

The spelling of 133143142500 in words is "one hundred thirty-three billion, one hundred forty-three million, one hundred forty-two thousand, five hundred".