133143101440 has 64 divisors (see below), whose sum is σ = 319538960820. Its totient is φ = 53257175040.

The previous prime is 133143101309. The next prime is 133143101449. The reversal of 133143101440 is 44101341331.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 131867754496 + 1275346944 = 363136^2 + 35712^2 .

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-3 number, since 3×133143101440³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (133143101449) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242481 + ... + 570160.

Almost surely, 2^133143101440 is an apocalyptic number.

133143101440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

133143101440 is an abundant number, since it is smaller than the sum of its proper divisors (186395859380).

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

133143101440 is an frugal number, since it uses more digits than its factorization.

133143101440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812676 (or 812648 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 133143101440 its reverse (44101341331), we get a palindrome (177244442771).

The spelling of 133143101440 in words is "one hundred thirty-three billion, one hundred forty-three million, one hundred one thousand, four hundred forty".