134521525 has 12 divisors (see below), whose sum is σ = 167874052. Its totient is φ = 106928640.

The previous prime is 134521511. The next prime is 134521547. The reversal of 134521525 is 525125431.

It can be written as a sum of positive squares in 6 ways, for example, as 7921 + 134513604 = 89^2 + 11598^2 .

It is not a de Polignac number, because 134521525 - 2⁷ = 134521397 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 134521493 and 134521502.

It is a congruent 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, 13212 + ... + 21061.

Almost surely, 2^134521525 is an apocalyptic number.

It is an amenable number.

134521525 is a deficient number, since it is larger than the sum of its proper divisors (33352527).

134521525 is a wasteful number, since it uses less digits than its factorization.

134521525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34440 (or 34435 counting only the distinct ones).

The product of its digits is 6000, while the sum is 28.

The square root of 134521525 is about 11598.3414762629. The cubic root of 134521525 is about 512.3860067706.

Adding to 134521525 its reverse (525125431), we get a palindrome (659646956).

The spelling of 134521525 in words is "one hundred thirty-four million, five hundred twenty-one thousand, five hundred twenty-five".