10491493 has 2 divisors, whose sum is σ = 10491494. Its totient is φ = 10491492.

The previous prime is 10491443. The next prime is 10491517. The reversal of 10491493 is 39419401.

10491493 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10452289 + 39204 = 3233^2 + 198^2 .

It is a cyclic number.

It is not a de Polignac number, because 10491493 - 2⁹ = 10490981 is a prime.

It is a super-2 number, since 2×10491493² = 220142850738098, which contains 22 as substring.

It is equal to p₆₉₅₀₉₂ and since 10491493 and 695092 have the same sum of digits, it is a Honaker prime.

It is a plaindrome in base 13.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10491413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5245746 + 5245747.

It is an arithmetic number, because the mean of its divisors is an integer number (5245747).

Almost surely, 2^10491493 is an apocalyptic number.

It is an amenable number.

10491493 is a deficient number, since it is larger than the sum of its proper divisors (1).

10491493 is an equidigital number, since it uses as much as digits as its factorization.

10491493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 31.

The square root of 10491493 is about 3239.0574246222. The cubic root of 10491493 is about 218.9168036047.

The spelling of 10491493 in words is "ten million, four hundred ninety-one thousand, four hundred ninety-three".