135141525 has 36 divisors (see below), whose sum is σ = 242888100. Its totient is φ = 71827200.

The previous prime is 135141521. The next prime is 135141529. The reversal of 135141525 is 525141531.

135141525 is a `hidden beast` number, since 135 + 1 + 4 + 1 + 525 = 666.

It is an interprime number because it is at equal distance from previous prime (135141521) and next prime (135141529).

It can be written as a sum of positive squares in 6 ways, for example, as 1461681 + 133679844 = 1209^2 + 11562^2 .

It is not a de Polignac number, because 135141525 - 2² = 135141521 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135141521) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 77665 + ... + 79385.

Almost surely, 2^135141525 is an apocalyptic number.

135141525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135141525 is a deficient number, since it is larger than the sum of its proper divisors (107746575).

135141525 is a wasteful number, since it uses less digits than its factorization.

135141525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2086 (or 2078 counting only the distinct ones).

The product of its digits is 3000, while the sum is 27.

The square root of 135141525 is about 11625.0387096130. The cubic root of 135141525 is about 513.1719838756.

The spelling of 135141525 in words is "one hundred thirty-five million, one hundred forty-one thousand, five hundred twenty-five".