14513561 has 4 divisors (see below), whose sum is σ = 14570292. Its totient is φ = 14456832.

The previous prime is 14513557. The next prime is 14513567. The reversal of 14513561 is 16531541.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 16531541 = 13 ⋅1271657.

It can be written as a sum of positive squares in 2 ways, for example, as 12823561 + 1690000 = 3581^2 + 1300^2 .

It is a cyclic number.

It is not a de Polignac number, because 14513561 - 2² = 14513557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 14513561.

It is not an unprimeable number, because it can be changed into a prime (14513567) 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, 27980 + ... + 28493.

It is an arithmetic number, because the mean of its divisors is an integer number (3642573).

Almost surely, 2^14513561 is an apocalyptic number.

It is an amenable number.

14513561 is a deficient number, since it is larger than the sum of its proper divisors (56731).

14513561 is an equidigital number, since it uses as much as digits as its factorization.

14513561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56730.

The product of its digits is 1800, while the sum is 26.

The square root of 14513561 is about 3809.6667833290. Note that the first 3 decimals coincide. The cubic root of 14513561 is about 243.9259438877.

The spelling of 14513561 in words is "fourteen million, five hundred thirteen thousand, five hundred sixty-one".