13410921 has 8 divisors (see below), whose sum is σ = 18148384. Its totient is φ = 8807040.

The previous prime is 13410919. The next prime is 13410931. The reversal of 13410921 is 12901431.

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

It is not a de Polignac number, because 13410921 - 2¹ = 13410919 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13410931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33160 + ... + 33561.

It is an arithmetic number, because the mean of its divisors is an integer number (2268548).

Almost surely, 2^13410921 is an apocalyptic number.

It is an amenable number.

13410921 is a deficient number, since it is larger than the sum of its proper divisors (4737463).

13410921 is an equidigital number, since it uses as much as digits as its factorization.

13410921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66791.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 13410921 is about 3662.0924346608. The cubic root of 13410921 is about 237.5852827613.

The spelling of 13410921 in words is "thirteen million, four hundred ten thousand, nine hundred twenty-one".