135858709 has 16 divisors (see below), whose sum is σ = 164617216. Its totient is φ = 109641600.

The previous prime is 135858691. The next prime is 135858731. The reversal of 135858709 is 907858531.

It is a cyclic number.

It is not a de Polignac number, because 135858709 - 2¹¹ = 135856661 is a prime.

It is a super-2 number, since 2×135858709² = 36915177622293362, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135858209) 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, 432 + ... + 16489.

It is an arithmetic number, because the mean of its divisors is an integer number (10288576).

Almost surely, 2^135858709 is an apocalyptic number.

It is an amenable number.

135858709 is a deficient number, since it is larger than the sum of its proper divisors (28758507).

135858709 is a wasteful number, since it uses less digits than its factorization.

135858709 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16996.

The product of its (nonzero) digits is 302400, while the sum is 46.

The square root of 135858709 is about 11655.8444138552. The cubic root of 135858709 is about 514.0781687048.

The spelling of 135858709 in words is "one hundred thirty-five million, eight hundred fifty-eight thousand, seven hundred nine".