133441530621 has 16 divisors (see below), whose sum is σ = 205913395200. Its totient is φ = 75287083248.

The previous prime is 133441530601. The next prime is 133441530643. The reversal of 133441530621 is 126035144331.

It is not a de Polignac number, because 133441530621 - 2⁵ = 133441530589 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133441530601) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40215801 + ... + 40219118.

It is an arithmetic number, because the mean of its divisors is an integer number (12869587200).

Almost surely, 2^133441530621 is an apocalyptic number.

It is an amenable number.

133441530621 is a deficient number, since it is larger than the sum of its proper divisors (72471864579).

133441530621 is an equidigital number, since it uses as much as digits as its factorization.

133441530621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80435008.

The product of its (nonzero) digits is 25920, while the sum is 33.

Adding to 133441530621 its reverse (126035144331), we get a palindrome (259476674952).

The spelling of 133441530621 in words is "one hundred thirty-three billion, four hundred forty-one million, five hundred thirty thousand, six hundred twenty-one".