133430457887 has 4 divisors (see below), whose sum is σ = 133438796160. Its totient is φ = 133422119616.

The previous prime is 133430457841. The next prime is 133430457931. The reversal of 133430457887 is 788754034331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133430457887 - 2²² = 133426263583 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133435457887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4145087 + ... + 4177152.

It is an arithmetic number, because the mean of its divisors is an integer number (33359699040).

Almost surely, 2^133430457887 is an apocalyptic number.

133430457887 is a deficient number, since it is larger than the sum of its proper divisors (8338273).

133430457887 is an equidigital number, since it uses as much as digits as its factorization.

133430457887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8338272.

The product of its (nonzero) digits is 6773760, while the sum is 53.

The spelling of 133430457887 in words is "one hundred thirty-three billion, four hundred thirty million, four hundred fifty-seven thousand, eight hundred eighty-seven".