135670625 has 30 divisors (see below), whose sum is σ = 181109214. Its totient is φ = 101248000.

The previous prime is 135670597. The next prime is 135670627. The reversal of 135670625 is 526076531.

It can be written as a sum of positive squares in 15 ways, for example, as 115519504 + 20151121 = 10748^2 + 4489^2 .

It is not a de Polignac number, because 135670625 - 2⁸ = 135670369 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135670627) 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 29 ways as a sum of consecutive naturals, for example, 1200569 + ... + 1200681.

Almost surely, 2^135670625 is an apocalyptic number.

It is an amenable number.

135670625 is a deficient number, since it is larger than the sum of its proper divisors (45438589).

135670625 is an frugal number, since it uses more digits than its factorization.

135670625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263 (or 135 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 135670625 is about 11647.7733923699. The cubic root of 135670625 is about 513.8408276888.

The spelling of 135670625 in words is "one hundred thirty-five million, six hundred seventy thousand, six hundred twenty-five".