13180891 has 2 divisors, whose sum is σ = 13180892. Its totient is φ = 13180890.

The previous prime is 13180873. The next prime is 13180897. The reversal of 13180891 is 19808131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13180891 - 2¹¹ = 13178843 is a prime.

It is not a weakly prime, because it can be changed into another prime (13180897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6590445 + 6590446.

It is an arithmetic number, because the mean of its divisors is an integer number (6590446).

Almost surely, 2^13180891 is an apocalyptic number.

13180891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13180891 is an equidigital number, since it uses as much as digits as its factorization.

13180891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 31.

The square root of 13180891 is about 3630.5496828993. The cubic root of 13180891 is about 236.2190523369.

The spelling of 13180891 in words is "thirteen million, one hundred eighty thousand, eight hundred ninety-one".