10381091 has 6 divisors (see below), whose sum is σ = 12076020. Its totient is φ = 8898036.

The previous prime is 10381081. The next prime is 10381093. The reversal of 10381091 is 19018301.

It is not a de Polignac number, because 10381091 - 2¹⁸ = 10118947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10381093) 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 in 5 ways as a sum of consecutive naturals, for example, 105881 + ... + 105978.

It is an arithmetic number, because the mean of its divisors is an integer number (2012670).

Almost surely, 2^10381091 is an apocalyptic number.

10381091 is a deficient number, since it is larger than the sum of its proper divisors (1694929).

10381091 is an equidigital number, since it uses as much as digits as its factorization.

10381091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211873 (or 211866 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 23.

The square root of 10381091 is about 3221.9700495194. The cubic root of 10381091 is about 218.1462069457.

Adding to 10381091 its reverse (19018301), we get a palindrome (29399392).

The spelling of 10381091 in words is "ten million, three hundred eighty-one thousand, ninety-one".