14531561 has 16 divisors (see below), whose sum is σ = 17418240. Its totient is φ = 11967120.

The previous prime is 14531533. The next prime is 14531567. The reversal of 14531561 is 16513541.

It is a de Polignac number, because none of the positive numbers 2^k-14531561 is a prime.

It is a super-2 number, since 2×14531561² = 422332530193442, which contains 22 as substring.

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 14531561.

It is not an unprimeable number, because it can be changed into a prime (14531567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3296 + ... + 6318.

It is an arithmetic number, because the mean of its divisors is an integer number (1088640).

Almost surely, 2^14531561 is an apocalyptic number.

14531561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

14531561 is a deficient number, since it is larger than the sum of its proper divisors (2886679).

14531561 is a wasteful number, since it uses less digits than its factorization.

14531561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3076.

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

The square root of 14531561 is about 3812.0284626430. The cubic root of 14531561 is about 244.0267427913.

The spelling of 14531561 in words is "fourteen million, five hundred thirty-one thousand, five hundred sixty-one".