133837180445 has 4 divisors (see below), whose sum is σ = 160604616540. Its totient is φ = 107069744352.

The previous prime is 133837180429. The next prime is 133837180501. The reversal of 133837180445 is 544081738331.

It is a happy number.

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 24644604196 + 109192576249 = 156986^2 + 330443^2 .

It is a cyclic number.

It is not a de Polignac number, because 133837180445 - 2⁴ = 133837180429 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133837180445.

It is a congruent number.

It is an unprimeable number.

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, 13383718040 + ... + 13383718049.

It is an arithmetic number, because the mean of its divisors is an integer number (40151154135).

Almost surely, 2^133837180445 is an apocalyptic number.

It is an amenable number.

133837180445 is a deficient number, since it is larger than the sum of its proper divisors (26767436095).

133837180445 is an equidigital number, since it uses as much as digits as its factorization.

133837180445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26767436094.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 133837180445 in words is "one hundred thirty-three billion, eight hundred thirty-seven million, one hundred eighty thousand, four hundred forty-five".