135510325 has 6 divisors (see below), whose sum is σ = 168032834. Its totient is φ = 108408240.

The previous prime is 135510307. The next prime is 135510343. The reversal of 135510325 is 523015531.

It is an interprime number because it is at equal distance from previous prime (135510307) and next prime (135510343).

It can be written as a sum of positive squares in 3 ways, for example, as 3122289 + 132388036 = 1767^2 + 11506^2 .

It is not a de Polignac number, because 135510325 - 2⁵ = 135510293 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25), and also a Moran number because the ratio is a prime number: 5420413 = 135510325 / (1 + 3 + 5 + 5 + 1 + 0 + 3 + 2 + 5).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 135510325.

It is a congruent 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, 2710182 + ... + 2710231.

Almost surely, 2^135510325 is an apocalyptic number.

It is an amenable number.

135510325 is a deficient number, since it is larger than the sum of its proper divisors (32522509).

135510325 is an equidigital number, since it uses as much as digits as its factorization.

135510325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5420423 (or 5420418 counting only the distinct ones).

The product of its (nonzero) digits is 2250, while the sum is 25.

The square root of 135510325 is about 11640.8902150995. The cubic root of 135510325 is about 513.6383737762.

Adding to 135510325 its reverse (523015531), we get a palindrome (658525856).

The spelling of 135510325 in words is "one hundred thirty-five million, five hundred ten thousand, three hundred twenty-five".