133340545405 has 4 divisors (see below), whose sum is σ = 160008654492. Its totient is φ = 106672436320.

The previous prime is 133340545397. The next prime is 133340545411. The reversal of 133340545405 is 504545043331.

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

It can be written as a sum of positive squares in 2 ways, for example, as 68345122041 + 64995423364 = 261429^2 + 254942^2 .

It is not a de Polignac number, because 133340545405 - 2³ = 133340545397 is a prime.

It is a super-2 number, since 2×133340545405² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13334054536 + ... + 13334054545.

It is an arithmetic number, because the mean of its divisors is an integer number (40002163623).

Almost surely, 2^133340545405 is an apocalyptic number.

It is an amenable number.

133340545405 is a deficient number, since it is larger than the sum of its proper divisors (26668109087).

133340545405 is an equidigital number, since it uses as much as digits as its factorization.

133340545405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26668109086.

The product of its (nonzero) digits is 216000, while the sum is 37.

Adding to 133340545405 its reverse (504545043331), we get a palindrome (637885588736).

The spelling of 133340545405 in words is "one hundred thirty-three billion, three hundred forty million, five hundred forty-five thousand, four hundred five".