135871325 has 12 divisors (see below), whose sum is σ = 168742548. Its totient is φ = 108528000.

The previous prime is 135871319. The next prime is 135871349. The reversal of 135871325 is 523178531.

135871325 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 22534009 + 113337316 = 4747^2 + 10646^2 .

It is a de Polignac number, because none of the positive numbers 2^k-135871325 is a prime.

It is a super-2 number, since 2×135871325² = 36922033914511250, which contains 22 as substring.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13649 + ... + 21401.

It is an arithmetic number, because the mean of its divisors is an integer number (14061879).

Almost surely, 2^135871325 is an apocalyptic number.

It is an amenable number.

135871325 is a deficient number, since it is larger than the sum of its proper divisors (32871223).

135871325 is an equidigital number, since it uses as much as digits as its factorization.

135871325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8464 (or 8459 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 135871325 is about 11656.3855890237. The cubic root of 135871325 is about 514.0940808473.

The spelling of 135871325 in words is "one hundred thirty-five million, eight hundred seventy-one thousand, three hundred twenty-five".