133426525 has 6 divisors (see below), whose sum is σ = 165448922. Its totient is φ = 106741200.

The previous prime is 133426499. The next prime is 133426529. The reversal of 133426525 is 525624331.

133426525 = 1609² + 1610² + ... + 1658².

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 46321636 + 87104889 = 6806^2 + 9333^2 .

It is not a de Polignac number, because 133426525 - 2¹³ = 133418333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133426529) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2668506 + ... + 2668555.

Almost surely, 2^133426525 is an apocalyptic number.

It is an amenable number.

133426525 is a deficient number, since it is larger than the sum of its proper divisors (32022397).

133426525 is an equidigital number, since it uses as much as digits as its factorization.

133426525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5337071 (or 5337066 counting only the distinct ones).

The product of its digits is 21600, while the sum is 31.

The square root of 133426525 is about 11551.0399964679. The cubic root of 133426525 is about 510.9919499653.

The spelling of 133426525 in words is "one hundred thirty-three million, four hundred twenty-six thousand, five hundred twenty-five".