123535525 has 6 divisors (see below), whose sum is σ = 153184082. Its totient is φ = 98828400.

The previous prime is 123535523. The next prime is 123535541. The reversal of 123535525 is 525535321.

It can be written as a sum of positive squares in 3 ways, for example, as 32638369 + 90897156 = 5713^2 + 9534^2 .

It is not a de Polignac number, because 123535525 - 2¹ = 123535523 is a prime.

It is a super-2 number, since 2×123535525² = 30522051874051250, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123535523) 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, 2470686 + ... + 2470735.

Almost surely, 2^123535525 is an apocalyptic number.

It is an amenable number.

123535525 is a deficient number, since it is larger than the sum of its proper divisors (29648557).

123535525 is an equidigital number, since it uses as much as digits as its factorization.

123535525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4941431 (or 4941426 counting only the distinct ones).

The product of its digits is 22500, while the sum is 31.

The square root of 123535525 is about 11114.6536158353. The cubic root of 123535525 is about 498.0396910887.

The spelling of 123535525 in words is "one hundred twenty-three million, five hundred thirty-five thousand, five hundred twenty-five".