20124095 has 4 divisors (see below), whose sum is σ = 24148920. Its totient is φ = 16099272.

The previous prime is 20124079. The next prime is 20124101. The reversal of 20124095 is 59042102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20124095 - 2⁴ = 20124079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20124095.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2012405 + ... + 2012414.

It is an arithmetic number, because the mean of its divisors is an integer number (6037230).

Almost surely, 2^20124095 is an apocalyptic number.

20124095 is a deficient number, since it is larger than the sum of its proper divisors (4024825).

20124095 is an equidigital number, since it uses as much as digits as its factorization.

20124095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4024824.

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 20124095 is about 4485.9887427411. The cubic root of 20124095 is about 272.0020139341.

Adding to 20124095 its reverse (59042102), we get a palindrome (79166197).

The spelling of 20124095 in words is "twenty million, one hundred twenty-four thousand, ninety-five".