14531661 has 6 divisors (see below), whose sum is σ = 20990190. Its totient is φ = 9687768.

The previous prime is 14531659. The next prime is 14531663. The reversal of 14531661 is 16613541.

It is an interprime number because it is at equal distance from previous prime (14531659) and next prime (14531663).

It can be written as a sum of positive squares in only one way, i.e., 7322436 + 7209225 = 2706^2 + 2685^2 .

It is not a de Polignac number, because 14531661 - 2¹ = 14531659 is a prime.

It is a super-2 number, since 2×14531661² = 422338342837842, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (14531663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 807306 + ... + 807323.

It is an arithmetic number, because the mean of its divisors is an integer number (3498365).

Almost surely, 2^14531661 is an apocalyptic number.

It is an amenable number.

14531661 is a deficient number, since it is larger than the sum of its proper divisors (6458529).

14531661 is a wasteful number, since it uses less digits than its factorization.

14531661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614635 (or 1614632 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 14531661 is about 3812.0415789967. The cubic root of 14531661 is about 244.0273025527.

The spelling of 14531661 in words is "fourteen million, five hundred thirty-one thousand, six hundred sixty-one".