14019561 has 10 divisors (see below), whose sum is σ = 20942922. Its totient is φ = 9346320.

The previous prime is 14019541. The next prime is 14019563. The reversal of 14019561 is 16591041.

It can be written as a sum of positive squares in only one way, i.e., 14017536 + 2025 = 3744^2 + 45^2 .

It is not a de Polignac number, because 14019561 - 2⁵ = 14019529 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (14019563) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 86460 + ... + 86621.

Almost surely, 2^14019561 is an apocalyptic number.

It is an amenable number.

14019561 is a deficient number, since it is larger than the sum of its proper divisors (6923361).

14019561 is an equidigital number, since it uses as much as digits as its factorization.

14019561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173093 (or 173084 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 27.

The square root of 14019561 is about 3744.2704229262. The cubic root of 14019561 is about 241.1264236859.

It can be divided in two parts, 140 and 19561, that added together give a triangular number (19701 = T₁₉₈).

The spelling of 14019561 in words is "fourteen million, nineteen thousand, five hundred sixty-one".