14131720 has 16 divisors (see below), whose sum is σ = 31796460. Its totient is φ = 5652672.

The previous prime is 14131717. The next prime is 14131751. The reversal of 14131720 is 2713141.

It can be written as a sum of positive squares in 2 ways, for example, as 14092516 + 39204 = 3754^2 + 198^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176607 + ... + 176686.

Almost surely, 2^14131720 is an apocalyptic number.

14131720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

14131720 is an abundant number, since it is smaller than the sum of its proper divisors (17664740).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

14131720 is a wasteful number, since it uses less digits than its factorization.

14131720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 353304 (or 353300 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 14131720 is about 3759.2180037875. The cubic root of 14131720 is about 241.7677347112.

Adding to 14131720 its reverse (2713141), we get a palindrome (16844861).

The spelling of 14131720 in words is "fourteen million, one hundred thirty-one thousand, seven hundred twenty".