133443552401 has 8 divisors (see below), whose sum is σ = 134017065000. Its totient is φ = 132871132800.

The previous prime is 133443552383. The next prime is 133443552419. The reversal of 133443552401 is 104255344331.

It is an interprime number because it is at equal distance from previous prime (133443552383) and next prime (133443552419).

It can be written as a sum of positive squares in 4 ways, for example, as 51358437376 + 82085115025 = 226624^2 + 286505^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133443552401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133443551401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28076 + ... + 517373.

It is an arithmetic number, because the mean of its divisors is an integer number (16752133125).

Almost surely, 2^133443552401 is an apocalyptic number.

It is an amenable number.

133443552401 is a deficient number, since it is larger than the sum of its proper divisors (573512599).

133443552401 is an equidigital number, since it uses as much as digits as its factorization.

133443552401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546499.

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 133443552401 its reverse (104255344331), we get a palindrome (237698896732).

The spelling of 133443552401 in words is "one hundred thirty-three billion, four hundred forty-three million, five hundred fifty-two thousand, four hundred one".