135809667 has 24 divisors (see below), whose sum is σ = 231429120. Its totient is φ = 75101040.

The previous prime is 135809623. The next prime is 135809669. The reversal of 135809667 is 766908531.

It is a happy number.

135809667 is a `hidden beast` number, since 1 + 3 + 580 + 9 + 6 + 67 = 666.

It is not a de Polignac number, because 135809667 - 2⁷ = 135809539 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135809669) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32817 + ... + 36722.

It is an arithmetic number, because the mean of its divisors is an integer number (9642880).

Almost surely, 2^135809667 is an apocalyptic number.

135809667 is a deficient number, since it is larger than the sum of its proper divisors (95619453).

135809667 is a wasteful number, since it uses less digits than its factorization.

135809667 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69583 (or 69580 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 135809667 is about 11653.7404724835. The cubic root of 135809667 is about 514.0163042969.

The spelling of 135809667 in words is "one hundred thirty-five million, eight hundred nine thousand, six hundred sixty-seven".