135425025 has 18 divisors (see below), whose sum is σ = 242561670. Its totient is φ = 72226560.

The previous prime is 135425011. The next prime is 135425033. The reversal of 135425025 is 520524531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 14930496 + 120494529 = 3864^2 + 10977^2 .

It is not a de Polignac number, because 135425025 - 2¹¹ = 135422977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 135425025.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 300720 + ... + 301169.

Almost surely, 2^135425025 is an apocalyptic number.

135425025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135425025 is a deficient number, since it is larger than the sum of its proper divisors (107136645).

135425025 is a wasteful number, since it uses less digits than its factorization.

135425025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601905 (or 601897 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The square root of 135425025 is about 11637.2258292086. The cubic root of 135425025 is about 513.5305774401.

Adding to 135425025 its reverse (520524531), we get a palindrome (655949556).

The spelling of 135425025 in words is "one hundred thirty-five million, four hundred twenty-five thousand, twenty-five".