133505254415 has 16 divisors (see below), whose sum is σ = 172671041088. Its totient is φ = 98507824896.

The previous prime is 133505254381. The next prime is 133505254439. The reversal of 133505254415 is 514452505331.

It is a de Polignac number, because none of the positive numbers 2^k-133505254415 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 760214 + ... + 919203.

It is an arithmetic number, because the mean of its divisors is an integer number (10791940068).

Almost surely, 2^133505254415 is an apocalyptic number.

133505254415 is a deficient number, since it is larger than the sum of its proper divisors (39165786673).

133505254415 is a wasteful number, since it uses less digits than its factorization.

133505254415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1680658.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 133505254415 its reverse (514452505331), we get a palindrome (647957759746).

The spelling of 133505254415 in words is "one hundred thirty-three billion, five hundred five million, two hundred fifty-four thousand, four hundred fifteen".