133244525 has 6 divisors (see below), whose sum is σ = 165223242. Its totient is φ = 106595600.

The previous prime is 133244509. The next prime is 133244533. The reversal of 133244525 is 525442331.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 9523396 + 123721129 = 3086^2 + 11123^2 .

It is not a de Polignac number, because 133244525 - 2⁴ = 133244509 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2664866 + ... + 2664915.

It is an arithmetic number, because the mean of its divisors is an integer number (27537207).

Almost surely, 2^133244525 is an apocalyptic number.

It is an amenable number.

133244525 is a deficient number, since it is larger than the sum of its proper divisors (31978717).

133244525 is an equidigital number, since it uses as much as digits as its factorization.

133244525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5329791 (or 5329786 counting only the distinct ones).

The product of its digits is 14400, while the sum is 29.

The square root of 133244525 is about 11543.1592296043. The cubic root of 133244525 is about 510.7595052979.

Adding to 133244525 its reverse (525442331), we get a palindrome (658686856).

The spelling of 133244525 in words is "one hundred thirty-three million, two hundred forty-four thousand, five hundred twenty-five".