135825009 has 16 divisors (see below), whose sum is σ = 189076800. Its totient is φ = 86619456.

The previous prime is 135824993. The next prime is 135825017. The reversal of 135825009 is 900528531.

It is not a de Polignac number, because 135825009 - 2⁴ = 135824993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135825029) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2322 + ... + 16644.

It is an arithmetic number, because the mean of its divisors is an integer number (11817300).

Almost surely, 2^135825009 is an apocalyptic number.

It is an amenable number.

135825009 is a deficient number, since it is larger than the sum of its proper divisors (53251791).

135825009 is a wasteful number, since it uses less digits than its factorization.

135825009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14464.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 135825009 is about 11654.3986974876. The cubic root of 135825009 is about 514.0356591813.

The spelling of 135825009 in words is "one hundred thirty-five million, eight hundred twenty-five thousand, nine".