13894121 has 8 divisors (see below), whose sum is σ = 14368200. Its totient is φ = 13426560.

The previous prime is 13894099. The next prime is 13894123. The reversal of 13894121 is 12149831.

It can be written as a sum of positive squares in 4 ways, for example, as 18496 + 13875625 = 136^2 + 3725^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13894121 - 2²² = 9699817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13894123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2915 + ... + 6023.

It is an arithmetic number, because the mean of its divisors is an integer number (1796025).

Almost surely, 2^13894121 is an apocalyptic number.

It is an amenable number.

13894121 is a deficient number, since it is larger than the sum of its proper divisors (474079).

13894121 is a wasteful number, since it uses less digits than its factorization.

13894121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3259.

The product of its digits is 1728, while the sum is 29.

The square root of 13894121 is about 3727.4818577694. The cubic root of 13894121 is about 240.4051086351.

The spelling of 13894121 in words is "thirteen million, eight hundred ninety-four thousand, one hundred twenty-one".