135541625 has 8 divisors (see below), whose sum is σ = 169156104. Its totient is φ = 108433200.

The previous prime is 135541591. The next prime is 135541631. The reversal of 135541625 is 526145531.

It can be written as a sum of positive squares in 4 ways, for example, as 1352569 + 134189056 = 1163^2 + 11584^2 .

It is not a de Polignac number, because 135541625 - 2¹² = 135537529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 135541591 and 135541600.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 542042 + ... + 542291.

It is an arithmetic number, because the mean of its divisors is an integer number (21144513).

Almost surely, 2^135541625 is an apocalyptic number.

It is an amenable number.

135541625 is a deficient number, since it is larger than the sum of its proper divisors (33614479).

135541625 is an equidigital number, since it uses as much as digits as its factorization.

135541625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084348 (or 1084338 counting only the distinct ones).

The product of its digits is 18000, while the sum is 32.

The square root of 135541625 is about 11642.2345363766. The cubic root of 135541625 is about 513.6779172414.

The spelling of 135541625 in words is "one hundred thirty-five million, five hundred forty-one thousand, six hundred twenty-five".