10190921 has 8 divisors (see below), whose sum is σ = 11114880. Its totient is φ = 9286992.

The previous prime is 10190903. The next prime is 10190927. The reversal of 10190921 is 12909101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10190921 - 2⁶ = 10190857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10190927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3935 + ... + 5988.

It is an arithmetic number, because the mean of its divisors is an integer number (1389360).

Almost surely, 2^10190921 is an apocalyptic number.

It is an amenable number.

10190921 is a deficient number, since it is larger than the sum of its proper divisors (923959).

10190921 is an equidigital number, since it uses as much as digits as its factorization.

10190921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10015.

The product of its (nonzero) digits is 162, while the sum is 23.

The square root of 10190921 is about 3192.3221955185. The cubic root of 10190921 is about 216.8059241515.

It can be divided in two parts, 10190 and 921, that added together give a palindrome (11111).

The spelling of 10190921 in words is "ten million, one hundred ninety thousand, nine hundred twenty-one".