135798625 has 8 divisors (see below), whose sum is σ = 169476840. Its totient is φ = 108638800.

The previous prime is 135798623. The next prime is 135798653. The reversal of 135798625 is 526897531.

It can be written as a sum of positive squares in 4 ways, for example, as 3272481 + 132526144 = 1809^2 + 11512^2 .

It is not a de Polignac number, because 135798625 - 2¹ = 135798623 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135798623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543070 + ... + 543319.

It is an arithmetic number, because the mean of its divisors is an integer number (21184605).

Almost surely, 2^135798625 is an apocalyptic number.

It is an amenable number.

135798625 is a deficient number, since it is larger than the sum of its proper divisors (33678215).

135798625 is an equidigital number, since it uses as much as digits as its factorization.

135798625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1086404 (or 1086394 counting only the distinct ones).

The product of its digits is 453600, while the sum is 46.

The square root of 135798625 is about 11653.2667093824. The cubic root of 135798625 is about 514.0023732271.

The spelling of 135798625 in words is "one hundred thirty-five million, seven hundred ninety-eight thousand, six hundred twenty-five".