135605873 has 8 divisors (see below), whose sum is σ = 150748416. Its totient is φ = 121136400.

The previous prime is 135605863. The next prime is 135605879. The reversal of 135605873 is 378506531.

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

It is a cyclic number.

It is not a de Polignac number, because 135605873 - 2⁶ = 135605809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (135605879) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 167843 + ... + 168648.

It is an arithmetic number, because the mean of its divisors is an integer number (18843552).

Almost surely, 2^135605873 is an apocalyptic number.

135605873 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

135605873 is a deficient number, since it is larger than the sum of its proper divisors (15142543).

135605873 is a wasteful number, since it uses less digits than its factorization.

135605873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336535.

The product of its (nonzero) digits is 75600, while the sum is 38.

The square root of 135605873 is about 11644.9934735920. The cubic root of 135605873 is about 513.7590671357.

The spelling of 135605873 in words is "one hundred thirty-five million, six hundred five thousand, eight hundred seventy-three".