133545431534 has 16 divisors (see below), whose sum is σ = 200549074176. Its totient is φ = 66695777400.

The previous prime is 133545431521. The next prime is 133545431611. The reversal of 133545431534 is 435134545331.

It is a junction number, because it is equal to n+sod(n) for n = 133545431491 and 133545431500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10132769 + ... + 10145939.

It is an arithmetic number, because the mean of its divisors is an integer number (12534317136).

Almost surely, 2^133545431534 is an apocalyptic number.

133545431534 is a deficient number, since it is larger than the sum of its proper divisors (67003642642).

133545431534 is a wasteful number, since it uses less digits than its factorization.

133545431534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18631.

The product of its digits is 648000, while the sum is 41.

Adding to 133545431534 its reverse (435134545331), we get a palindrome (568679976865).

The spelling of 133545431534 in words is "one hundred thirty-three billion, five hundred forty-five million, four hundred thirty-one thousand, five hundred thirty-four".