14020561 has 4 divisors (see below), whose sum is σ = 14149300. Its totient is φ = 13891824.

The previous prime is 14020553. The next prime is 14020579. The reversal of 14020561 is 16502041.

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 9960336 + 4060225 = 3156^2 + 2015^2 .

It is a cyclic number.

It is not a de Polignac number, because 14020561 - 2³ = 14020553 is a prime.

It is a super-2 number, since 2×14020561² = 393152261509442, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (14020541) 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, 64206 + ... + 64423.

It is an arithmetic number, because the mean of its divisors is an integer number (3537325).

Almost surely, 2^14020561 is an apocalyptic number.

It is an amenable number.

14020561 is a deficient number, since it is larger than the sum of its proper divisors (128739).

14020561 is a wasteful number, since it uses less digits than its factorization.

14020561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128738.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 14020561 is about 3744.4039579084. The cubic root of 14020561 is about 241.1321566446.

The spelling of 14020561 in words is "fourteen million, twenty thousand, five hundred sixty-one".