135636423 has 8 divisors (see below), whose sum is σ = 194760048. Its totient is φ = 83468544.

The previous prime is 135636419. The next prime is 135636427. The reversal of 135636423 is 324636531.

It is an interprime number because it is at equal distance from previous prime (135636419) and next prime (135636427).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 135636423 - 2² = 135636419 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135636427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1738890 + ... + 1738967.

It is an arithmetic number, because the mean of its divisors is an integer number (24345006).

Almost surely, 2^135636423 is an apocalyptic number.

135636423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

135636423 is a deficient number, since it is larger than the sum of its proper divisors (59123625).

135636423 is a wasteful number, since it uses less digits than its factorization.

135636423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477873.

The product of its digits is 38880, while the sum is 33.

The square root of 135636423 is about 11646.3051222265. The cubic root of 135636423 is about 513.7976450150.

The spelling of 135636423 in words is "one hundred thirty-five million, six hundred thirty-six thousand, four hundred twenty-three".