13971841 has 16 divisors (see below), whose sum is σ = 16063488. Its totient is φ = 12038400.

The previous prime is 13971817. The next prime is 13971851. The reversal of 13971841 is 14817931.

13971841 = T₂₈₃ + T₂₈₄ + ... + T₄₇₃.

It is a cyclic number.

It is not a de Polignac number, because 13971841 - 2⁵ = 13971809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13971797 and 13971806.

It is not an unprimeable number, because it can be changed into a prime (13971851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42046 + ... + 42376.

It is an arithmetic number, because the mean of its divisors is an integer number (1003968).

It is a Poulet number, since it divides 2^13971840-1.

Almost surely, 2^13971841 is an apocalyptic number.

It is an amenable number.

13971841 is a deficient number, since it is larger than the sum of its proper divisors (2091647).

13971841 is a wasteful number, since it uses less digits than its factorization.

13971841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552.

The product of its digits is 6048, while the sum is 34.

The square root of 13971841 is about 3737.8925880769. The cubic root of 13971841 is about 240.8525293969.

It can be divided in two parts, 139 and 71841, that multiplied together give a palindrome (9985899).

The spelling of 13971841 in words is "thirteen million, nine hundred seventy-one thousand, eight hundred forty-one".