10121091 has 16 divisors (see below), whose sum is σ = 14592000. Its totient is φ = 6218208.

The previous prime is 10121063. The next prime is 10121093. The reversal of 10121091 is 19012101.

It is not a de Polignac number, because 10121091 - 2⁷ = 10120963 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10121091.

It is not an unprimeable number, because it can be changed into a prime (10121093) 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 15 ways as a sum of consecutive naturals, for example, 291 + ... + 4508.

It is an arithmetic number, because the mean of its divisors is an integer number (912000).

Almost surely, 2^10121091 is an apocalyptic number.

10121091 is a deficient number, since it is larger than the sum of its proper divisors (4470909).

10121091 is a wasteful number, since it uses less digits than its factorization.

10121091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4858.

The product of its (nonzero) digits is 18, while the sum is 15.

The square root of 10121091 is about 3181.3662159519. The cubic root of 10121091 is about 216.3095912041.

Adding to 10121091 its reverse (19012101), we get a palindrome (29133192).

The spelling of 10121091 in words is "ten million, one hundred twenty-one thousand, ninety-one".