135860823 has 12 divisors (see below), whose sum is σ = 224278288. Its totient is φ = 77634720.

The previous prime is 135860807. The next prime is 135860833. The reversal of 135860823 is 328068531.

It is not a de Polignac number, because 135860823 - 2⁴ = 135860807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135860833) 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 11 ways as a sum of consecutive naturals, for example, 1078198 + ... + 1078323.

Almost surely, 2^135860823 is an apocalyptic number.

135860823 is a deficient number, since it is larger than the sum of its proper divisors (88417465).

135860823 is a wasteful number, since it uses less digits than its factorization.

135860823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2156534 (or 2156531 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The square root of 135860823 is about 11655.9350976230. The cubic root of 135860823 is about 514.0808350916.

The spelling of 135860823 in words is "one hundred thirty-five million, eight hundred sixty thousand, eight hundred twenty-three".