133225240545 has 24 divisors (see below), whose sum is σ = 231424705512. Its totient is φ = 70899321600.

The previous prime is 133225240543. The next prime is 133225240559. The reversal of 133225240545 is 545042522331.

133225240545 is a `hidden beast` number, since 1 + 3 + 3 + 22 + 52 + 40 + 545 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 205291584 + 133019948961 = 14328^2 + 364719^2 .

It is not a de Polignac number, because 133225240545 - 2¹ = 133225240543 is a prime.

It is a super-2 number, since 2×133225240545² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (133225240541) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3190276 + ... + 3231765.

It is an arithmetic number, because the mean of its divisors is an integer number (9642696063).

Almost surely, 2^133225240545 is an apocalyptic number.

133225240545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

133225240545 is a deficient number, since it is larger than the sum of its proper divisors (98199464967).

133225240545 is a wasteful number, since it uses less digits than its factorization.

133225240545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6422513 (or 6422510 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 36.

Adding to 133225240545 its reverse (545042522331), we get a palindrome (678267762876).

The spelling of 133225240545 in words is "one hundred thirty-three billion, two hundred twenty-five million, two hundred forty thousand, five hundred forty-five".