13941091 has 2 divisors, whose sum is σ = 13941092. Its totient is φ = 13941090.

The previous prime is 13941077. The next prime is 13941097. The reversal of 13941091 is 19014931.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13941091 is a prime.

It is equal to p₉₀₆₅₆₂ and since 13941091 and 906562 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (13941097) 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 as a sum of consecutive naturals, namely, 6970545 + 6970546.

It is an arithmetic number, because the mean of its divisors is an integer number (6970546).

Almost surely, 2^13941091 is an apocalyptic number.

13941091 is a deficient number, since it is larger than the sum of its proper divisors (1).

13941091 is an equidigital number, since it uses as much as digits as its factorization.

13941091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

The square root of 13941091 is about 3733.7770420849. Note that the first 3 decimals coincide. The cubic root of 13941091 is about 240.6757057589.

It can be divided in two parts, 1394 and 1091, that added together give a triangular number (2485 = T₇₀).

The spelling of 13941091 in words is "thirteen million, nine hundred forty-one thousand, ninety-one".