20114569 has 4 divisors (see below), whose sum is σ = 20658244. Its totient is φ = 19570896.

The previous prime is 20114557. The next prime is 20114573. The reversal of 20114569 is 96541102.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15327225 + 4787344 = 3915^2 + 2188^2 .

It is a cyclic number.

It is not a de Polignac number, because 20114569 - 2¹³ = 20106377 is a prime.

It is a super-2 number, since 2×20114569² = 809191772111522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111569) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 271782 + ... + 271855.

It is an arithmetic number, because the mean of its divisors is an integer number (5164561).

Almost surely, 2^20114569 is an apocalyptic number.

It is an amenable number.

20114569 is a deficient number, since it is larger than the sum of its proper divisors (543675).

20114569 is an equidigital number, since it uses as much as digits as its factorization.

20114569 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543674.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 20114569 is about 4484.9268667393. The cubic root of 20114569 is about 271.9590886061.

The spelling of 20114569 in words is "twenty million, one hundred fourteen thousand, five hundred sixty-nine".