20888135 has 8 divisors (see below), whose sum is σ = 25156656. Its totient is φ = 16649920.

The previous prime is 20888123. The next prime is 20888143. The reversal of 20888135 is 53188802.

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

It is not a de Polignac number, because 20888135 - 2⁸ = 20887879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20888095 and 20888104.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6029 + ... + 8838.

It is an arithmetic number, because the mean of its divisors is an integer number (3144582).

Almost surely, 2^20888135 is an apocalyptic number.

20888135 is a deficient number, since it is larger than the sum of its proper divisors (4268521).

20888135 is a wasteful number, since it uses less digits than its factorization.

20888135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15153.

The product of its (nonzero) digits is 15360, while the sum is 35.

The square root of 20888135 is about 4570.3539250259. The cubic root of 20888135 is about 275.4016609881.

The spelling of 20888135 in words is "twenty million, eight hundred eighty-eight thousand, one hundred thirty-five".