134531525 has 6 divisors (see below), whose sum is σ = 166819122. Its totient is φ = 107625200.

The previous prime is 134531521. The next prime is 134531539. The reversal of 134531525 is 525135431.

It can be written as a sum of positive squares in 3 ways, for example, as 1844164 + 132687361 = 1358^2 + 11519^2 .

It is not a de Polignac number, because 134531525 - 2² = 134531521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (134531521) 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, 2690606 + ... + 2690655.

It is an arithmetic number, because the mean of its divisors is an integer number (27803187).

Almost surely, 2^134531525 is an apocalyptic number.

It is an amenable number.

134531525 is a deficient number, since it is larger than the sum of its proper divisors (32287597).

134531525 is an equidigital number, since it uses as much as digits as its factorization.

134531525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5381271 (or 5381266 counting only the distinct ones).

The product of its digits is 9000, while the sum is 29.

The square root of 134531525 is about 11598.7725643708. The cubic root of 134531525 is about 512.3987029620.

Adding to 134531525 its reverse (525135431), we get a palindrome (659666956).

The spelling of 134531525 in words is "one hundred thirty-four million, five hundred thirty-one thousand, five hundred twenty-five".