10211491 has 2 divisors, whose sum is σ = 10211492. Its totient is φ = 10211490.

The previous prime is 10211401. The next prime is 10211497. The reversal of 10211491 is 19411201.

10211491 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10211491 - 2⁷ = 10211363 is a prime.

It is not a weakly prime, because it can be changed into another prime (10211497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5105745 + 5105746.

It is an arithmetic number, because the mean of its divisors is an integer number (5105746).

Almost surely, 2^10211491 is an apocalyptic number.

10211491 is a deficient number, since it is larger than the sum of its proper divisors (1).

10211491 is an equidigital number, since it uses as much as digits as its factorization.

10211491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 19.

The square root of 10211491 is about 3195.5423639814. The cubic root of 10211491 is about 216.9516977161.

Adding to 10211491 its reverse (19411201), we get a palindrome (29622692).

The spelling of 10211491 in words is "ten million, two hundred eleven thousand, four hundred ninety-one".