133545521541 has 8 divisors (see below), whose sum is σ = 179044456864. Its totient is φ = 88538466960.

The previous prime is 133545521537. The next prime is 133545521561. The reversal of 133545521541 is 145125545331.

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

It is not a de Polignac number, because 133545521541 - 2² = 133545521537 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133545521541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133545521531) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 122969551 + ... + 122970636.

It is an arithmetic number, because the mean of its divisors is an integer number (22380557108).

Almost surely, 2^133545521541 is an apocalyptic number.

It is an amenable number.

133545521541 is a deficient number, since it is larger than the sum of its proper divisors (45498935323).

133545521541 is a wasteful number, since it uses less digits than its factorization.

133545521541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245940371.

The product of its digits is 180000, while the sum is 39.

The spelling of 133545521541 in words is "one hundred thirty-three billion, five hundred forty-five million, five hundred twenty-one thousand, five hundred forty-one".