13881461 has 16 divisors (see below), whose sum is σ = 15664320. Its totient is φ = 12193920.

The previous prime is 13881451. The next prime is 13881463. The reversal of 13881461 is 16418831.

It is a happy number.

It is not a de Polignac number, because 13881461 - 2¹⁴ = 13865077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13881463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 47231 + ... + 47523.

It is an arithmetic number, because the mean of its divisors is an integer number (979020).

Almost surely, 2^13881461 is an apocalyptic number.

13881461 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13881461 is a deficient number, since it is larger than the sum of its proper divisors (1782859).

13881461 is a wasteful number, since it uses less digits than its factorization.

13881461 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 436.

The product of its digits is 4608, while the sum is 32.

The square root of 13881461 is about 3725.7832733534. The cubic root of 13881461 is about 240.3320692650.

The spelling of 13881461 in words is "thirteen million, eight hundred eighty-one thousand, four hundred sixty-one".