13139841 has 32 divisors (see below), whose sum is σ = 20845440. Its totient is φ = 7257600.

The previous prime is 13139821. The next prime is 13139851. The reversal of 13139841 is 14893131.

13139841 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13139841 - 2¹³ = 13131649 is a prime.

It is a Smith number, since the sum of its digits (30) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 13139799 and 13139808.

It is not an unprimeable number, because it can be changed into a prime (13139821) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46621 + ... + 46901.

It is an arithmetic number, because the mean of its divisors is an integer number (651420).

Almost surely, 2^13139841 is an apocalyptic number.

13139841 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13139841 is a deficient number, since it is larger than the sum of its proper divisors (7705599).

13139841 is a wasteful number, since it uses less digits than its factorization.

13139841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 417.

The product of its digits is 2592, while the sum is 30.

The square root of 13139841 is about 3624.8918604560. The cubic root of 13139841 is about 235.9735738389.

The spelling of 13139841 in words is "thirteen million, one hundred thirty-nine thousand, eight hundred forty-one".