135809466 has 32 divisors (see below), whose sum is σ = 299654208. Its totient is φ = 40767360.

The previous prime is 135809459. The next prime is 135809467. The reversal of 135809466 is 664908531.

It is a super-2 number, since 2×135809466² = 36888422110410312, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (135809467) 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 15 ways as a sum of consecutive naturals, for example, 18036 + ... + 24431.

It is an arithmetic number, because the mean of its divisors is an integer number (9364194).

Almost surely, 2^135809466 is an apocalyptic number.

135809466 is an abundant number, since it is smaller than the sum of its proper divisors (163844742).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

135809466 is a wasteful number, since it uses less digits than its factorization.

135809466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42526.

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 135809466 is about 11653.7318486397. The cubic root of 135809466 is about 514.0160507133.

The spelling of 135809466 in words is "one hundred thirty-five million, eight hundred nine thousand, four hundred sixty-six".