20259123 has 8 divisors (see below), whose sum is σ = 27184848. Its totient is φ = 13419744.

The previous prime is 20259103. The next prime is 20259133. The reversal of 20259123 is 32195202.

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

It is not a de Polignac number, because 20259123 - 2⁸ = 20258867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20259093 and 20259102.

It is not an unprimeable number, because it can be changed into a prime (20259103) 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 7 ways as a sum of consecutive naturals, for example, 21036 + ... + 21977.

It is an arithmetic number, because the mean of its divisors is an integer number (3398106).

Almost surely, 2^20259123 is an apocalyptic number.

20259123 is a deficient number, since it is larger than the sum of its proper divisors (6925725).

20259123 is a wasteful number, since it uses less digits than its factorization.

20259123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43173.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 20259123 is about 4501.0135525235. The cubic root of 20259123 is about 272.6090151033.

The spelling of 20259123 in words is "twenty million, two hundred fifty-nine thousand, one hundred twenty-three".