133545352225 has 12 divisors (see below), whose sum is σ = 165655528444. Its totient is φ = 106798029120.

The previous prime is 133545352217. The next prime is 133545352247. The reversal of 133545352225 is 522253545331.

It can be written as a sum of positive squares in 6 ways, for example, as 2295655569 + 131249696656 = 47913^2 + 362284^2 .

It is not a de Polignac number, because 133545352225 - 2³ = 133545352217 is a prime.

It is a super-2 number, since 2×133545352225² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 884994 + ... + 1024843.

Almost surely, 2^133545352225 is an apocalyptic number.

It is an amenable number.

133545352225 is a deficient number, since it is larger than the sum of its proper divisors (32110176219).

133545352225 is a wasteful number, since it uses less digits than its factorization.

133545352225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1912644 (or 1912639 counting only the distinct ones).

The product of its digits is 540000, while the sum is 40.

Adding to 133545352225 its reverse (522253545331), we get a palindrome (655798897556).

The spelling of 133545352225 in words is "one hundred thirty-three billion, five hundred forty-five million, three hundred fifty-two thousand, two hundred twenty-five".