13214891 has 4 divisors (see below), whose sum is σ = 13245984. Its totient is φ = 13183800.

The previous prime is 13214881. The next prime is 13214893. The reversal of 13214891 is 19841231.

13214891 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13214891 - 2⁶ = 13214827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13214893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14900 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (3311496).

Almost surely, 2^13214891 is an apocalyptic number.

13214891 is a deficient number, since it is larger than the sum of its proper divisors (31093).

13214891 is an equidigital number, since it uses as much as digits as its factorization.

13214891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31092.

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

The square root of 13214891 is about 3635.2291537123. The cubic root of 13214891 is about 236.4219863160.

The spelling of 13214891 in words is "thirteen million, two hundred fourteen thousand, eight hundred ninety-one".