135503524 has 36 divisors (see below), whose sum is σ = 263091780. Its totient is φ = 61002240.

The previous prime is 135503521. The next prime is 135503527. The reversal of 135503524 is 425305531.

It is an interprime number because it is at equal distance from previous prime (135503521) and next prime (135503527).

It can be written as a sum of positive squares in 6 ways, for example, as 39463524 + 96040000 = 6282^2 + 9800^2 .

It is a super-2 number, since 2×135503524² = 36722410032837152, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 135503492 and 135503501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135503521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25272 + ... + 30160.

It is an arithmetic number, because the mean of its divisors is an integer number (7308105).

Almost surely, 2^135503524 is an apocalyptic number.

It is an amenable number.

135503524 is a deficient number, since it is larger than the sum of its proper divisors (127588256).

135503524 is a wasteful number, since it uses less digits than its factorization.

135503524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4945 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 135503524 is about 11640.5980945998. The cubic root of 135503524 is about 513.6297807950.

The spelling of 135503524 in words is "one hundred thirty-five million, five hundred three thousand, five hundred twenty-four".