133432555401 has 12 divisors (see below), whose sum is σ = 195895519300. Its totient is φ = 87496757280.

The previous prime is 133432555391. The next prime is 133432555447. The reversal of 133432555401 is 104555234331.

133432555401 is a `hidden beast` number, since 1 + 3 + 34 + 32 + 55 + 540 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 64079859600 + 69352695801 = 253140^2 + 263349^2 .

It is not a de Polignac number, because 133432555401 - 2¹⁴ = 133432539017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133432555481) 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 11 ways as a sum of consecutive naturals, for example, 121522726 + ... + 121523823.

Almost surely, 2^133432555401 is an apocalyptic number.

It is an amenable number.

133432555401 is a deficient number, since it is larger than the sum of its proper divisors (62462963899).

133432555401 is a wasteful number, since it uses less digits than its factorization.

133432555401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243046616 (or 243046613 counting only the distinct ones).

The product of its (nonzero) digits is 108000, while the sum is 36.

Adding to 133432555401 its reverse (104555234331), we get a palindrome (237987789732).

The spelling of 133432555401 in words is "one hundred thirty-three billion, four hundred thirty-two million, five hundred fifty-five thousand, four hundred one".