20144069 has 8 divisors (see below), whose sum is σ = 22137408. Its totient is φ = 18177760.

The previous prime is 20144053. The next prime is 20144071. The reversal of 20144069 is 96044102.

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 20144069 - 2⁴ = 20144053 is a prime.

It is a super-2 number, since 2×20144069² = 811567031753522, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20144039) 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, 5177 + ... + 8190.

It is an arithmetic number, because the mean of its divisors is an integer number (2767176).

Almost surely, 2^20144069 is an apocalyptic number.

It is an amenable number.

20144069 is a deficient number, since it is larger than the sum of its proper divisors (1993339).

20144069 is a wasteful number, since it uses less digits than its factorization.

20144069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13515.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 20144069 is about 4488.2144556605. The cubic root of 20144069 is about 272.0919752753.

The spelling of 20144069 in words is "twenty million, one hundred forty-four thousand, sixty-nine".