135151025 has 6 divisors (see below), whose sum is σ = 167587302. Its totient is φ = 108120800.

The previous prime is 135151001. The next prime is 135151031. The reversal of 135151025 is 520151531.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 312481 + 134838544 = 559^2 + 11612^2 .

It is not a de Polignac number, because 135151025 - 2¹² = 135146929 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2702996 + ... + 2703045.

It is an arithmetic number, because the mean of its divisors is an integer number (27931217).

Almost surely, 2^135151025 is an apocalyptic number.

It is an amenable number.

135151025 is a deficient number, since it is larger than the sum of its proper divisors (32436277).

135151025 is an equidigital number, since it uses as much as digits as its factorization.

135151025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5406051 (or 5406046 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 135151025 is about 11625.4473032224. The cubic root of 135151025 is about 513.1840083554.

The spelling of 135151025 in words is "one hundred thirty-five million, one hundred fifty-one thousand, twenty-five".