133764284645 has 16 divisors (see below), whose sum is σ = 160842829680. Its totient is φ = 106794530304.

The previous prime is 133764284617. The next prime is 133764284651. The reversal of 133764284645 is 546482467331.

It is a Cunningham number, because it is equal to 365738²+1.

It can be written as a sum of positive squares in 8 ways, for example, as 18622150369 + 115142134276 = 136463^2 + 339326^2 .

It is a cyclic number.

It is not a de Polignac number, because 133764284645 - 2²² = 133760090341 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, 5036561 + ... + 5063049.

It is an arithmetic number, because the mean of its divisors is an integer number (10052676855).

Almost surely, 2^133764284645 is an apocalyptic number.

It is an amenable number.

133764284645 is a deficient number, since it is larger than the sum of its proper divisors (27078545035).

133764284645 is a wasteful number, since it uses less digits than its factorization.

133764284645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28504.

The product of its digits is 11612160, while the sum is 53.

The spelling of 133764284645 in words is "one hundred thirty-three billion, seven hundred sixty-four million, two hundred eighty-four thousand, six hundred forty-five".